• GReddy Street Turbo Kit
• RX8Performance Turbo Kit
• SFR Turbo Kit
• Turblown RX-8 Turbo System
• Mazfix Gen 1 RX-8 Stage One Turbo Upgrade
• Jump to winners

In a hurry? Here’s our RX-8 Turbo Kit summary

Runner-Up Choice	Drifted Choice	Premium Choice (AUS)
RX8Performance Turbo Kit	GReddy Street Turbo Kit	Mazfix Gen 1 RX-8 Stage One Turbo Upgrade
Buy Now	Discontinued	Buy Now

There’s no question that very few cars on the market will provide the same bang for your buck as Mazda’s RX-8.

The front-engine, rear-wheel-drive layout and a limited-slip differential from the factory sound like the ideal opportunity for any aspiring drifter.

Top that off with the potential 238-horsepower from the incredible-sounding screaming rotary powerplant and an impressive redline of 9,000rpm.

It also has some unique features when it comes to styling, such as the rear suicide doors, which they’ve managed to incorporate to keep the ‘sporty’ styling.

The overall package begins to sound perfect, especially considering how much of a bargain they’ve become in recent years.

But we all know that 238hp isn’t enough to satisfy you for too long, especially if you plan to drift your RX-8.

Sure, they handle insanely well in stock form in the twisties, but when it comes to straight-line power, you’ll often be left deflated if you decide to go head-to-head against a higher-powered rival.

So, why not bolt on a turbo kit so that you can create the perfect sleeper so that you can cause an upset on both the streets and the track?

Unfortunately, it’s not so straightforward regarding the 1.3L Renesis rotary that Mazda opted for this time.

Although a bolt-on turbo conversion sounds like the perfect answer in the real world, there’s a fair bit more to consider.

The Renesis engine has the highest compression of any Rotary engine to date.

Although the RX7 featured twin-turbos in factory form, the 10:1 compression from the RX-8’s Renesis engine enabled Mazda to use it’s full-potential in naturally-aspirated form, which doesn’t make it the most convenient engine when it comes to forced induction.

This is why many owners have opted for an engine swap, with the 13B-REW being the most popular choice, alongside more commonly found, cheaper alternatives such as the GM LS and Honda K24 engines.

With that said, it’s far from impossible.

It just takes a little more expense, effort, work, and risk than it would on a lower-compression engine.

Part of the added expense comes down to the ECU, which controls almost everything in the RX-8, so standalone management isn’t easily adapted. For that reason, you’ll need to consider a piggyback ECU.

One of the first considerations that come to mind with the RX-8 is, ‘Why didn’t Mazda do something crazier with the Renesis?’

Let’s face it; the Japanese auto giants gave us the insane RX7 FD in their previous generation from a rotary, fitted with twin turbos and capable of ludicrous power.

Mazda probably would’ve done it if it were as simple as bolting a cheap turbo kit and then achieving silly power from your RX-8 while maintaining reliability.

But, this time, they seemed to target the daily driver market, possibly proving that the Rotary engine still had long-term potential and could be far more reliable than its predecessors.

They also had stronger emissions laws to consider, and the Renesis side-port engine was developed to address this.

Where the ports were straight out of the rotor housings in pre-RX-8s, they opted for a similar design on both the exhaust and intake ports this time.

Many owners have adjusted the porting, but this often comes with downsides, likely to outweigh the benefits.

Mazda probably would’ve done it if it were worth doing.

The RX-8 is arguably well-tuned in stock form considering, and there isn’t a wide range of bolt-on modifications that will provide impressive power gains.

Sure, there are the usual aftermarket exhaust upgrades, and breathing mods, which could free up a couple of horses, and maybe sound even better.

But what if you’re hunting some serious power figures?

You’re unlikely to see more than a few horsepower increase from a N/A engine, but several RX-8s out there are achieving over 450hp after a turbo upgrade.

For that reason, it hasn’t stopped many RX-8 enthusiasts from going ahead with their turbo upgrades, achieving the full potential that the Renesis truly has to offer.

Some have later gone on to admit that it’s been the most fun that they’ve ever had in a car.

It’s certainly not as cheap or convenient as some other engines, but if you have a personal attachment to your RX-8, want to do something different, and don’t mind spending cash on building something unique, then why the hell not?

After all, the beauty of tuning is that you get to choose what YOU want to do to satisfy your needs, and the more unique and crazy, the better!

Before we begin turbocharging your Renesis engine, we want to remind you that reliability is vital here.

The last thing you want is to add the stresses of forced induction onto an engine already on its way out.

Since the Renesis happily revs its way to 9,000rpm, the chances are it’s already had a pretty heavy life.

Therefore, we recommend a compression test immediately to ensure an optimal foundation.

Once you’ve established that you’ve (hopefully) got a reliable engine, it’s time to consider which RX-8 turbo kit will be perfect for your needs.

One of the first considerations will be whether you’re looking for a top-mount or low-mount kit.

Top mount kits are often known for causing issues with the oil metering pump due to heat, which can end in tears.

However, thinking ahead with the likes of heat wrap can help to eliminate these problems. We don’t recommend deleting the OMP on a streetcar.

The benefit of a top mount is that the piping route is much more convenient.

Low-mount kits also come with their issues.

You’ll often need to bang out the firewall, the chances are that getting to the turbo won’t be too convenient, and you’ll be restricted with turbo size due to space. The intercooler piping can also often cause a headache.

The main benefit of low-mount kits is that there’s less heat within the engine bay.

Regarding the maximum boost on a stock engine, we wouldn’t recommend going beyond 11PSI. Anything beyond that, and you’ll likely turn your friendly Renesis into a ticking time bomb.

You may think we’re excessively skeptical of forced induction on the Renesis engine, but we prefer to be realistic.

We know firsthand how gutting it can be to spend vast amounts of time, money, and effort on something that doesn’t go to plan.

Although many people have had tremendous success with the Renesis engine long-term with forced induction, many others have failed.

Perhaps down to a lack of preparation and trying to cut corners, so it’s best to be careful.

If you’re not yet entirely set on turbocharging, there’s often a heated debate between RX-8 owners as to whether supercharging is the better option for forced induction.

Not sure about the difference between turbocharging and supercharging? Ensure you head to our Turbocharger vs Supercharger – What’s Best? Article.

Another popular alternative to turbocharging is to bypass the Renesis engine entirely.

Given the bargain prices RX-8s can be purchased for these days, they’re a fantastic chassis for an exciting engine upgrade.

Some people opt for crazy swaps, but the most common exchange is the 13B from the RX7, and there are several off-the-shelf kits on the market to make this a convenient option.

However, with RX7 prices increasing, the chance of picking one up cheap is less likely than ever.

You’ll also still suffer from the headaches that come with rotary engines.

For that reason, V8s often find themselves as the weapon of choice.

Not only are they far more convenient to source at a bargain price, but their superior reliability and ease of spares also make them an ideal choice.

Not to mention that they’re also far more convenient to turbocharge.

We’ve compared some of the most popular V8 engines in our LS1 vs LS2 and LT1 vs LS1 guides.

We also looked at the likes of the 1UZFE and 1JZ if you fancy something different.

While we’re talking about ‘different,’ take a look at this crazy triple-turbo RX-8!

With that said, let’s look at some of the best off-the-shelf RX-8 turbo kits available on the market!

Now that we’ve outlined the positives and negatives let’s look at our RX-8 Turbo Kit selection.

RX-8 turbo kit selection

Click on the product name or photo to learn more about these turbo kits.

GReddy Street Turbo Kit

• Manufacturer: GReddy
• Fitment: Mazda RX8
• Value for money:
• Purchase link: Discontinued

Our comment: We begin our list with the most popular off-the-shelf turbo kit for the RX-8 with JDM tuning legends, GReddy.

However, since it’s the most popular kit out there, a tremendous amount of support and parts will be easy to get your hands on, so we don’t think it’s fair to rule it out just yet.

Although the GReddy kit is the most popular, it’s still imperfect. Therefore, BNR and MazdaManiac have off-the-shelf upgrades, which can make the kit damn near perfect if you’re willing to spend a little extra cash.

The main issues seem to have been with the turbo, which many owners state is undersized for its purpose.

It’s also said to have an inadequate bearing housing and a weak actuator spring and is limited to around 270 RWHP.

If you plan to go beyond this power, you’ll need to consider upgrading the turbo and the intercooler.

Here’s an excellent write-up on unleashing the ultimate potential from your GReddy turbo kit over on RX8Club.com.

For FAQs, you can also visit this article on RXClub.com.

The typical install time for the GReddy kit seems to be around 10-12 hours.

So, although it’s not perfect, this kit can be the ideal choice if you can get one second-hand, especially if you’re prepared to buy a brand-new uprated turbo to go with it.

If you’re able to snap one up in good condition, this could potentially end up being a real bargain.

Manufacturer description: “It takes a tremendous amount of money and time to successfully increase the power of a naturally aspirated engine. With a GReddy bolt-on turbocharger kit you can obtain instant horsepower gains with less time and money while still having the potential for upgrading.”

“Unlike most turbo kits on the market today, GReddy kits are designed specifically for driveability and reliability, as well as performance. Since they are based completely on stock engines, these kits come with all the necessary basics, including fuel enrichment.”

GReddy RX-8 Turbo Kit Features

• GReddy Spec Mitsu T618Z Turbo
• GReddy Cast-Iron Manifold
• GReddy Cast-Iron Downpipe
• Ext. Type T Wastegates
• GReddy 31v Front Mount Intercooler
• Polished Aluminum Intercooler Piping
• Pre-Programmed GReddy E-manage
• GReddy E-Manage Harness
• GReddy Airinx AY-SB
• Necessary Piping & Hoses
• Oil Lines
• All Necessary Hardware & Fittings
• Install Instructions & Wiring Diagrams

RX8Performance Turbo Kit

• Manufacturer: RX8Performance
• Fitment: Mazda RX8
• Value for money:
• Purchase link: Buy your RX8Performance Turbo Kit here

Our comment: This low-mount turbo kit from RX8Performance has extremely impressive owner reviews and is undoubtedly a serious competitor to the GReddy package.

Although its implementation isn’t as widespread, it’s gained much attention from owners and enthusiasts.

With each kit being hand-built, RX8Performance has listened to the market feedback, building a kit that requires minimal hassle and modification to fit, capable of achieving 330-350whp.

It’s hard to find long-term testing online, but the initial feedback seems fantastic, and it certainly looks the part.

The owners that have fitted it have often praised the great response and assistance from RX8Performance, but there seem to be mixed opinions on their history, which may be worth researching.

With the lack of real-world use and questionable history of the company, we couldn’t give the full marks in the rating.

We highly recommend further research if this is likely the ideal kit for your needs, as it could be the best on the market.

Manufacturer description: “Over the years we have turbo-charged a wide variety of rotary powered vehicles, so when we set out to design a new turbo system for the RX-8, we had some important criteria we wanted to achieve. A turbo system that would be responsive and produce power over a broad range yet be completely capable of producing 330-350rwhp.”

“The challenge was to design a system that was well mannered as a daily driver yet contain the high quality components and headroom required to withstand the rigors of competition and track use! We also knew this would need to be offered as a true, complete bolt-on package to the consumer.”

RX8Performance Turbo Kit Features

• Precision Turbo CEA Billet wheel 6266sp dual ball ceramic bearing turbo. V-band in and out, .82 A/R
• Precision Turbo 46 mm wastegate and spring kit allowing 17 different boost level combinations
• Tig Welded 11 Gauge 100% Stainless Steel manifold
• Tig Welded 3-inch Stainless Steel downpipe with v-band wastegate port
• Bead-rolled 6061 Aluminum charge tubes
• Synapse Blow-Off valve with recirculation fitting, hose, and clamps
• Large Bar and plate front mount Intercooler
• Adjustable Intercooler mount to accommodate aftermarket bumper covers
• High-Quality Reinforced Silicone Couplers
• Stainless Steel T-Bolt Clamps
• 3.5-inch Cold Air intake with Maf Air Straighter
• Passengers side motor mount bracket and mounting hardware
• Braided stainless steel oil feed and return lines with hardware
• Required fasteners
• 2.5, 2.75, or a 3-inch flex section for your mid-pipe or catalytic convertor is included
• Required check valves for the JAM, OMP, and PCV systems. Hard fitting locations are determined during the build process of your order to suit your specific needs.

SFR Turbo Kit

• Manufacturer: Speed Force Racing (SFR)
• Fitment: Mazda RX8
• Value for money:
• Purchase link: Buy your SFR Turbo Kit here

Our comment: We’ve traced very little information from those who purchased the SFR turbo kit, but everything we could find was positive.

It certainly looks to be a great kit, and with a highly-regarded reputation from SFR’s other products that we’ve seen in the past, their package could well be worth considering.

We’ve seen claims of 367whp achieved from this kit, but we couldn’t find much regarding the long-term results.

Manufacturer description: “The good news is that there is hope. The Speed Force Racing single turbo system for the RX-8 is the answer. Now you can have the performance you always wanted out of your RX-8. Turn that anemic performing Renesis motor into a fire-breathing turbocharged 326WHP Rotary that screams to 10,000 rpms with 9 psi of intercooled boost.”

“Now you dont have to worry about being left at the stop light by every econobox that has an intake and exhaust on it.The days of cringing every time a Mustang or Camaro pulls up and flexes its v-8 muscle are long gone. Now you have something up your sleeve. Now you can show off the power of the rotary motor as you proceed to leave them in the dust.If you want more then performance then your prayers have been answered.Now you have the show quality looks to match when you pop the hood.”

SFR Turbo Kit Features

• Turbonetics T60-1 Turbo
• Turbo Mounting Plate
• 304SS Stainless Turbo Heat Shield
• 321SS “Ultimate Flow” Turbo Header
• 3.5 – 3″ Cold Air Intake
• K&N air filter
• Tial 46mm Dual-Port Wastegate
• 1.6″ 304SS Wastegate Dumptube
• 3″ 304SS Downpipe
• Bell Front Mount Intercooler
• 2-2.5-3″ Aluminum Intercooler Piping
• Tial 50mm Blow off Valve
• Battery Relocation Line w/ Cables
• Thermotec Header Wrap
• Stainless Steel Radiator Hose
• Silicone hoses (red, blue or black)
• Stainless Steel Hoseclamps
• 3-AN Teflon Lined Oil Feed w/ Fittings
• 10-AM Oil Drain w/ Fittings
• All Necessary Hardware & Fittings

Mazfix Gen 1 RX-8 Stage One Turbo Upgrade

• Manufacturer: Mazfix
• Fitment: Mazda RX-8 Gen 1
• Value for money:
• Purchase link: Buy your Mazfix Gen 1 RX-8 Stage One Turbo Upgrade here

Our comment: The Mazfix is one of the highest-regarded systems on the RX-8 scene, but it comes with one slight issue. Mazfix is based in Australia, and this kit is provided on a drive-in, drive-out basis.

We appreciate that this won’t be convenient for most of you, but since Drifted has a worldwide fanbase, we didn’t feel it was right to leave one of the best options off our list.

These rotary specialists are sure to make you feel at home, and the owner is even known for letting you take a drive in their pre-built RX-8 to let you decide precisely what you want from your build.

In many ways, Mazfix seems to be the perfect option; it’s just a shame that they’ll be based so far away from most.

If you’re in Australia, look no further!

Mazfix Turbo Kit Features

• Massive 200kW at the wheels (approximately)
• Street legal. Comes with Mod Plate / Certificate
• Double ball bearing turbo with an internal wastegate, now with upgraded billet front wheel
• Quality Hiflow Intercooler
• Quality pipework
• Bolt-up exhaust – No cutting or modifications to standard exhaust
• Retuned Factory ECU
• Completely reversible and unboltable
• Uses standard exhaust and air intake or can be upgraded
• Fully Installed and Tuned
• Drives like a standard RX-8, EXCEPT when you put your foot down
• Fuel economy similar to factory, unless using boost
• Please Note: We highly recommend the RX-8 Clutch Upgrade, as the standard clutch won’t keep up with the massive increase in torque

Turblown RX-8 Turbo Kit

• Manufacturer: Turblown
• Fitment: Mazda RX8
• Value for money:
• Purchase link:  Buy your Turblown RX-8 Turbo Kit here

Our comment: There’s no question that Turblown has pulled two great-looking kits out of the bag here, but, unfortunately, that seems to be where the positive feedback ends.

We struggled to find many positive opinions on the company; the negatives outweighed the positives.

There are a couple of decent builds using their kits, but the company’s reputation leaves much to be desired after some alleged shady dealings.

They claim to be able to produce up to 475hp from their kits, but apparently, the reliability is a mixed bag.

We’d recommend proceeding cautiously if you’re considering a Turblown kit, but we also advise you to do your own research.

Turblown RX-8 Turbo Kit Features

• T4 57 Trim Garrett To4E turbocharger offers extremely fast spool and a top end that never runs out of airflow
• Our 3 into 1 custom made 321SS turbo manifold outperforms log style manifolds offering better response and a broader torque curve
• Custom steel motor mount bracket to accommodate our free flowing turbo manifold
• TiAL MVS 38mm v-band waste gate and an open dump tube
• 3″ 304SS downpipe that employs a 3″ flex bellow for engine movement
• Custom Stainless oil & coolant feed/return hard lines are included to eliminate heat-related failures OF commonly used rubber hose
• Custom fabricated front-mounted intercooler using a genuine Garrett Core. It includes T-bolt clamps with high-quality silicone couplers
• Oil metering pump block-off kit & relocation bracket
• Coolant surge tank relocation bracket
• Protective 3M Gentex wiring harness thermal sleeve
• Custom aluminum thermostat upper and lower hard line assembly is included to prevent heat-related failures of the turbo system by eliminating vulnerable stock rubber counterparts. A new lower radiator hose is included
• Ambient air intake system featuring a recirculated blow off valve that is designed to ensure proper mass air flow sensor operation and the highest possible flow characteristics
• Walbro 255lph drop-in fuel pump and fuel injector modification service are included. This service satisfies fuel requirements for 400whp and requires core injectors up front for modification

Our winners

Now we have looked at all the best RX-8 turbo kits available today, which products are our top picks?

Best RX-8 Turbo Kit Choice

In the context of these turbo kits, we are choosing the GReddy Street turbo kit as the winner.

GReddy Street Turbo Kit

We completely understand if you disagree with our choice since the GReddy kit isn’t perfect.

As you can see, this certainly hasn’t been the easiest turbo kit decision we’ve made throughout our various turbo guides.

Although the GReddy kit is by far the most popular among RX-8 owners, the fact that it’s since been discontinued is far from ideal if you want to purchase a brand-new turbo kit.

Therefore, we’d recommend checking out the best available option on the market, the runner-up choice RX8Performance Turbo Kit.

Our RX-8 Turbo Kit winner has to go to the GReddy Street Turbo Kit

The fact that the turbo seems to suffer from issues is also a concern, but since upgrades are available to turn it into a fantastic all-arounder, this would be the preference if finances allow it.

However, there will undoubtedly be more parts floating around to still make it the best choice for some time.

We highly recommend checking out our runner-up if the turbo issues are a concern.

Despite the lack of long-term reviews, the feedback we’ve read on the company and its products so far has been excellent, so they could be the better choice.

Runner-Up RX-8 Turbo Kit Choice

We can understand if this kit appeals more to you than the GReddy turbo kit, especially since it’s readily available off the shelf. Still, given the lack of long-term results at present, we’re sticking with our initial vote.

There’s no question that first impressions of the RX8Performance kit have been fantastic, and if you feel this could be the perfect kit for you, we’d highly recommend doing some additional research.

RX8Performance Turbo Kit

Thank you for reading our RX-8 Turbo Kit guide!

We hope you’re confident in choosing the perfect turbo kit to compliment your Renesis engine, and you can finally hunt down the power goals you’d dreamed of achieving!

If you enjoyed this article, please share it with the buttons at the side and bottom of your screen. Find this information helpful? Please post a link to it on your car owners’ clubs. We appreciate your support.

Ever wondered what’s the difference between RX7 and the RX8? You have to check the full comparison of both cars’ features! Know which one’s the best car and why.

The post Best RX-8 Turbo Kit Guide first appeared on Drifted.com.

• Fortune Auto 500 Series
• Stance XR1
• BC Racing BR
• TEIN Flex Z
• TEIN Street Basis Z
• KW Variant 3 (V3)
• Megan Racing EZII Series
• KSport Slide Kontrol
• ISC Suspension N1
• Moton Club Sport Damper System
• Jump to winner

In a hurry? Here is our RX8 Coilover summary

Budget Choice	Drifted Choice	Premium Choice
TEIN Flex Z RX8 Coilovers	KW Variant 3 (V3) RX8 Coilovers	Moton Club Sport RX8 Coilovers
Buy Now	Buy Now	Buy Now

In the present day, the Mazda RX-8 is undoubtedly one of the most impressive bargains on the market and could potentially end up being one of the biggest bargains you’ll ever be fortunate enough to buy.

With proper rear-wheel drive, high-revving manual gearbox JDM sports cars becoming more expensive than ever, many enthusiasts are scared of the maintenance requirements of a rotary and the gas bills that come with it.

However, what if those don’t bother you? Perhaps you want a cheap, yet stylish daily, an affordable drift car, or you maybe even want to strip it down to build a bargain project car? The RX-8 really does tick so many boxes.

Thinking of engine swapping a cheap RX-8 with a blown engine? You will definitely want to invest in a set of coilovers to help manage a heavier (V8?) lump. The same goes for adding forced induction, the extra hardware is going to mess with your RX-8’s precise balance.

We stated in our RX-8 exhaust guide that it comes down to looks, sound, and price when it comes to choosing the perfect option.

However, coilovers are a little more complicated.

We highly recommend setting aside a decent budget, unless you’re planning on slamming it on its ass without too much concern with handling or durability.

However, if you’re doing anything else, you’re going to want to go with something that ticks as many of the right boxes for you as possible.

We’ve covered everything in our guide, from those who want to throw the car down sideways, scrape their way along the ground to the local meet, have a perfected canyon carver which can still do the school run or shave valuable milliseconds off on your time attack monster.

In this guide, we’re going to cover the cheapest coilovers on the market to one of the most expensive and pretty much everything else in-between.

Let’s take a look at our Mazda RX-8 coilover selection

To read more about any of these products simply click on the coilover name or photo.

Fortune Auto 500 RX8 Coilovers

• Manufacturer: Fortune Auto
• Levels of damping adjustment: 24
• Construction type: Monotube
• Spring rate front: 10kg/mm
• Spring rate rear: 6kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your Fortune Auto 500 Series coilovers here

Our comment: Fortune Auto’s products are always a consistently popular choice in the tuning scene. Bringing their wild color schemes along with excellent quality and reasonable prices, it’s easy to understand why.

Fortune Auto take pride in the amount of customization they offer to their customers. If the stock spring rate isn’t ideal for your needs, or you’d prefer to have the swift spring upgrade, speak with Enjuku Racing and we have no doubt they’ll provide whatever you may need.

These are a great choice if you’re looking for a coilover for daily use which is still capable of performing well at the track. With several custom options available, you’ll undoubtedly be able to find the perfect set up to suit your needs.

Manufacturer description: “Research on the racetrack has helped us develop the Fortune Auto 500 Series into a great all-around shock absorber. Using high-quality components that meet our strict standards allows us to optimize comfort, reliability, and longevity.“

“At Fortune Auto, we approach the science of suspension with a mentality of customization that has raised the industry’s standards of performance.“

Stance XR1 RX8 Coilovers

• Manufacturer: Stance
• Levels of damping adjustment: 15
• Construction type: Monotube
• Spring rate front: 9kg/mm
• Spring rate rear: 6kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your Stance XR1 coilovers here

Our comment: You might think that based on the name, these are purely for frame-laying your car and purely getting it as low as possible, but that’s not the case.

Despite being capable of some serious lows, these aren’t a crashy, uncomfortable ride like you may suspect. These are a great all-round coilover for everyday use.

We highly recommend considering the swift spring optional upgrade to make the most of this kit.

Manufacturer description: “Stance XR1 Coilovers are our standard single way adjustable coilover. The XR1 is very similar to our Super Sport line, but due to the constant development of our products, has been improved in many ways. The build and material quality has never been higher.“

“Newly designed pillowball and bushing materials increase longevity and performance. The range and consistency of the XR1 damping forces are also greater than previous Super Sports.“

BC Racing BR RX8 Coilovers

• Manufacturer: BC Racing
• Levels of damping adjustment: 30
• Construction type: Monotube
• Spring rate front: 8kg/mm
• Spring rate rear: 6kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your BC Racing BR coilovers here

Our comment: It’s the first coilover kit under the $1k bracket in our guide so far, and it’s from BC Racing’s extremely popular BR series. We’ve seen many happy owners running these, and they’re definitely a great bang-for-your-buck offering.

These are great if you’re looking for a simple street coilover with plenty of adjustabilities. With the swift spring option, these are a fantastic potential choice for the price.

If you’re looking for a more track-orientated coilover, their high-end BR Racing ER coilovers with external reservoirs are worth checking out.

Manufacturer description: “The components you use directly affect your vehicle’s performance, and that certainly includes your suspension system. These Toyota GT86 coilovers are perfect for street driving and occasional road course duty.“

“With easily accessible adjustment knobs for fine tuning your compression and rebound, as well as separately adjustable ride heights, having a high-performance coilover system has never been easier.“

TEIN Flex Z RX8 Coilovers

• Manufacturer: TEIN
• Levels of damping adjustment: 16
• Construction type: Twin-tube
• Spring rate front: 7kg/mm
• Spring rate rear: 5kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your TEIN Flex Z coilovers here

Our comment: JDM tuning legends TEIN have certainly stood the test of time, and are one of the well-known suspension companies in the tuning scene.

The Flex Z is their latest in a range of extremely competitively priced setups and despite the price, they’re still made in Yokohama, Japan with their typically exceptional eye for quality. The difference with these is that they have reduced their costs by making the body a sealed structure. This may initially sound like a bad idea, but at the price, it’s often more expensive to get a coilover system rebuilt than buy an entirely new one!

Despite being road orientated, these are also an extremely capable track coilover. These are also compatible with TEIN’s EDFC electronic damping system, which allows you to control the damping from inside the car at the touch of a button. You’re going to struggle to find a better setup for your money than what these have to offer.

Manufacturer description: “TEIN Flex Z Coilovers are the latest in TEIN’s generation of high end coilovers. The difference with Flex Z is that you are getting a coilover that would normally cost almost double the price.“

“The new manufacturing systems that TEIN has put in place with this line of coilovers has allowed for them to produce these coilovers at a lower price and pass that savings on to you. Quality and performance remains top of it’s class and TEIN builds these Flex Z coilovers with the highest quality standards in Yokohama, Japan making these a true Japanese JDM coilover system.“

TEIN Street Basis Z RX8 Coilovers

• Manufacturer: TEIN
• Levels of damping adjustment: N/A
• Construction type: Twin-tube
• Spring rate front: 5kg/mm
• Spring rate rear: 4kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your TEIN Street Basis coilovers here

Our comment: You’d be forgiven for wondering why we’re specifically reviewing two sets of the same brand, but we just couldn’t help but notice the insanely cheap price of TEIN’s entry-level kit.

These are of course a basic setup and don’t feature dampening adjustment, but you can still count on TEIN’s typical JDM quality to shine through in all of their products.

We’ve found many happy owners that just wanted to do basic tweaks to their ride-height who are delighted with this setup. For less than $600, it really is a steal.

Manufacturer description: “The TEIN Street Basis damper is the evolution of the popular BASIC coilover. Developed to provide a sporty ride feeling and aggressive stance. The shortened shell case design provides optimum damper stroke at lower than standard vehicle ride height. Vehicle ride height is adjustable via the ZT coated threaded sleeve.“

“Updated internal components and external coatings increase durability and product life. Street Basis dampers are great for daily driving and spirited driving for all types of drivers. Made in Japan under strict quality control standards and developed by highly trained suspension engineers.“

KW Variant 3 (V3) RX8 Coilovers

• Manufacturer: KW
• Levels of damping adjustment: 14
• Construction type: Monotube
• Spring rate front: 455 (lbs/inch)
• Spring rate rear: Rear Spring Rate: Progressive
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your KW Variant 3 (V3) coilovers here

Our comment: Make way for one of the big daddies of the suspension game! World-renowned German suspension experts KW have consistently blown away owners around the world with their exceptionally-priced Variant 3’s.

They may well be the most expensive option in our guide so far, but we can assure you that they’re worth every cent. Simply put, this kit is simply in a league above the coilovers that we’ve researched so far and will not leave you disappointed.

You might be thinking that these are a coilover made specifically for the track, but they’re actually a great all-rounder. Whether you’re daily driving, carving the canyons or throwing it down at the track, it’ll cover all your needs.

Manufacturer description: “The Variant 3 is state-of-the-art technology for the skilled and experienced driver. The separate and independent compression and rebound damping options allow a truly individual driving set-up.“

“These unique systems with the 3 individually adjustable components, allows for adjustment of the compression of the damper in the low-speed range, while the high-speed set-up, so decisive for driving comfort, has been pre set by our engineers.“

Megan Racing EZII Series RX8 Coilovers

• Manufacturer: Megan Racing
• Levels of damping adjustment: 15
• Construction type: Monotube
• Spring rate front: 8kg/mm
• Spring rate rear: 6kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your Megan Racing EZII Series coilovers here

Our comment: We’ve generally found that Megan Racing have a bit of a negative reputation in the suspension industry. Some owners have happily run them for long periods, where others have had very little luck with them.

The build quality and finish is generally reflected in the price with these, and we’d personally recommend opting for some of the higher-regarded alternatives for the same price, or less.

Manufacturer description: “Megan Racing EZII Series coilover system is aimed towards the more budget oriented enthusiast to offer the most basic essentials from an after-market coil-over setup, yet makes no compromises for quality and performance.“

KSport Slide Kontrol RX8 Coilovers

• Manufacturer: KSport
• Levels of damping adjustment: 36
• Construction type: Monotube
• Spring rate front: 9.8kg/mm
• Spring rate rear: 9kg/mm
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your K-Sport Slide Kontrol coilovers here

Our comment: KSport have gone out of their way to bring the only drift-orientated coilover setup to the RX-8, so it’d be rude not to feature them!

For those of you that are planning on kicking the back end out on your RX-8, these could well be a fantastic choice. You may require some additional suspension mods to get the most out of the car, but these will undoubtedly be a good start.

If you’re not looking for a drift-orientated coilover, but you’re keen to go down the KSport route, then make sure you check out their Kontrol Pro alternative too.

Manufacturer description: “Ksport Slide Kontrol Drift coilover Systems provide the ultimate in suspension technology featuring 36 levels adjustable damping, inverted shock design on most applications, adjustable spring perch, adjustable body and Pillow-ball mounts.“

“The Ksport Slide Kontrol Drift coilover System has been designed to endure the extended abuse and extreme handling-load of drifting.“

ISC Suspension N1 RX8 Coilovers

• Manufacturer: ISC Suspension
• Levels of damping adjustment: 32
• Construction type: Monotube
• Spring rate front: Various
• Spring rate rear: Various
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your ISC Suspension N1 coilovers here

Our comment: ISC are increasing in popularity in the coilover market, and are aiming to please customers by offering customized spring setups at no extra charge to suit your needs. With both Street Springs and Race/Track springs up for grabs, we’re sure you can also find a middle ground if you’re planning to do both occasionally.

They’re still not very commonly found in the RX-8 scene, but we’ve heard good things. They’re definitely worth considering if you’re on a budget. If you’re using the car for the track frequently, we’d advise spending a bit more money on a superior kit to maximize the true potential.

Manufacturer description: “The N1 coilover can be lowered approximately 3 inches lower than standard ride height. This, along with a spring rate setup to suit your car, improves handling and stability dramatically. we make packages for track/rally/drag and of course street, to help our customers out even more we give them the option to pick their own custom spring rates at no extra charge.“

Moton Club Sport RX8 Coilovers

• Manufacturer: Moton
• Levels of damping adjustment: 15
• Construction type: Monotube
• Spring rate front: Springs not included
• Spring rate rear: Springs not included
• Fitment: Mazda RX-8
• Value for money:
• Purchase link: Buy your Moton Club Sport coilovers here

Our comment: Now that you’ve (hopefully) recovered from looking at Moton’s suspension porn and then your disappointment when you saw the price, we present one of the kings of suspension – Moton.

Now, these obviously aren’t your average daily driver setup, however, they are up there with the top elite when it comes to perfected track setups. If you’re serious about setting the best lap times, you are undoubtedly going to love this incredible option.

Manufacturer description: “The 3-Way adjustable Moton damper features 15 positions of high speed bump, 6 positions low speed bump and 15 positions of rebound adjustment. The low speed bump adjuster is located on top of the high speed bump adjuster and can be adjusted in dependably.“

“The low speed bump adjuster is very effective in helping to control body roll while adding to turn in and is effective in controlling pitch and squat. The 3-Way adjustable Moton damper is using, like the double adjustable damper, a unique blow off valve system in the canister to totally control curb stones and bumpy track conditions.“

Our winner

Our winner is the highly acclaimed KW Variant 3 (V3) coilovers.

Of course, the Moton’s are unquestionably the better setup, but they’re purely track-orientated and way over budget for most owners. With the V3’s, they offer a great all-around package which will ensure the best performance both on the road and the track.

KW Variant 3 (V3) Mazda RX-8 Coilovers

The V3’s have been tried and tested by countless delighted owners over the years. With exceptional performance combined with the German quality and engineering, they’re the perfect choice on the market and with their superior corrosion protection, they’ll undoubtedly remain perfect for many years to come.

Runner-up

It’s been an extremely close call to decide a runner-up in this guide, as you’ve probably noticed from so many 4* ratings, but we’re going to have to hand this one to the TEIN Flex Z. With fantastic value and their renowned Japanese quality, they’re a great choice for those of you on a budget.

Combine these coilovers with their unique EDFC system and you’ll be prepared for whatever comes your way on the street or the track.

TEIN Flex Z

Thank you for reading our Mazda RX-8 coilover guide!

If you enjoyed this article then please share it with the sharing buttons at the side and the bottom of your screen.

Photography credits

We thank the following entities for use of their photography in this article:

• Stance Nation
• Enjuku Racing
• Vivid Racing
• Shavi Wijegunaratne (Flickr)

The post Ultimate Mazda RX-8 Coilover Guide first appeared on Drifted.com.

• GReddy Spectrum Elite
• Agency Power
• HKS Hi-Power
• HKS Legamax
• Borla
• TurboXS
• B&B (Billy Boat)
• APEXi Hybrid Megaphone
• Tanabe Medalion Touring
• Fujitsubo Legalis R
• Jump to winner

In a hurry? Here is our RX8 exhaust summary

Runner-Up Choice	Drifted Choice	Premium Choice
TurboXS Mazda RX8 Exhaust	HKS Hi-Power Mazda RX8 Exhaust	Borla Mazda RX8 Exhaust
Buy Now	Buy Now	Buy Now

When the RX-8 was launched to the market in 2003, it had huge boots to fill to live up to the expectations of its predecessor, the legendary RX-7. Motoring enthusiasts around the world rejoiced as Mazda announced that the RX-8 would once again be rocking the incredible rotary engine. Unfortunately though, this time around, the twin-turbo’s were nowhere to be seen.

However, turbos aside, with a front-mid-engine, rear wheel drive layout, near 50:50 weight distribution and the insane 9,500rpm rev limiter, it was still an incredible car on paper and a dream of many true car enthusiasts.

Fast forward to the present day, and the RX-8 has left its difficult history behind. A lot of RX-8 owners would’ve undoubtedly purchased this awesome-looking car from new without really fully understanding the complex mechanical aspect behind it.

The RX-8 is still a beast in its own right and wasn’t so suited to people that would run it every day for their shopping trips without really fully understanding the workings and maintenance requirements of a rotary engine.

Take a look at this video for an in-depth guide on exactly how the rotary engine actually works.

There are undoubtedly some perfect engines still to be had out there, but the rotary certainly needs more care and attention than most engines on the market, and the economy certainly isn’t to everyone’s taste.

Luckily, this has meant that it’s struggled through the test of time and no longer desirable to most everyday owners, which means that we get an incredible car at a ridiculously cheap price!

There’s no question that the rotary engine is one of the most insane ever produced, and not only does it sound great in stock form, but Mazda actually managed to squeeze most of the potential out of the exhaust, which is extremely rare to see from factories.

With that being said, there’s certainly room for improvement. We’re going to show you the best exhausts on the market which will still give you some small gains, along with more impressive sounds and far superior looks.

Whether you’re looking for a little more response, to simply update the looks or to make it sound like a whole new beast, our list will help you decide which is the perfect exhaust for you. It’s time to hear the true potential of what your rotary engine has to offer!

Before we get started, here’s a teaser video to prepare your eardrums for what they’re about to enjoy!

As always, try not to get caught up in the power claims from our selection, exhausts will only offer a minimal amount and it’s far more important to get a setup which you love the look, and sound of. When watching videos, you’ll want to bear in mind that multiple variations (angle, camera, etc) can change how an exhaust sounds.

You’ll also want to bear in mind that some cars may have had additional exhaust modifications carried out (headers, cats, etc) when watching the videos. If you like the sound of one, try to check whether it’s had additional mods carried out.

Now that you’ve got an idea of what you’re looking for, let’s take a look at our Mazda RX8 exhaust selection!

Our RX-8 exhaust line-up

GReddy Spectrum Elite Mazda RX8 exhaust

• Internal pipe diameter: 60mm (2.4″)
• Tailpipe configuration: Dual 102mm (4″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: GReddy
• Value for money:
• Our comment: JDM tuning legends GReddy kick off our list with their popular Spectrum Elite exhaust.

  GReddy has put their typical quality into creating this stunning system at a reasonable price. This is one of the quieter, more subtle sounds on the market, but with a fantastic tone.

  They also went on to later release the GReddy Supreme SP, which offers a larger piping diameter, for those of you considering bigger power, which is naturally also slightly louder. Both choices are great for different purposes, and you really can’t go wrong with either of these.

• Manufacturer description: “Today’s sophisticated tuners want it all, and GReddy’s SE exhaust systems deliver the full spectrum of features desired in a street performance system. SE exhausts increase flow via tuned piping and larger, free-flowing mufflers for improved power, but provide discreet sound levels that won’t attract the wrong kind of attention.”

  “The exhaust note is comfortable and sporty, not loud. Each application is tested and tuned for USA spec. vehicles, so fitment and sound are confirmed. All SE Exhausts are tested to be well below the 95dBA standard.”

• Purchase link: Discontinued

GReddy Spectrum Elite Mazda RX8 exhaust video

Agency Power Titanium Tip Mazda RX8 exhaust

• Internal pipe diameter: 76mm (3″)
• Tailpipe configuration: Dual 102mm (4″) tips
• Primary exhaust system material: Stainless Steel with Titanium Tips
• Fitment: Mazda RX8 (2004-11)
• Manufacturer: Agency Power
• Value for money:
• Our comment: This Agency Power exhaust is undoubtedly one of the most popular with RX8 owners and it’s certainly quite a bit louder than the GReddy.

  It may be too loud for most people when you’re on the throttle, but it’s surprisingly tame when cruising with a deep tone at idle. This exhaust is known for popping and banging frequently.

  This is certainly not one of the calmer exhausts in our list, but if you’re after a louder sound and don’t mind pops and bangs, this is a great exhaust at a great price.

• Manufacturer description: “The need for power, quality, and style has once again been executed by Agency Power with their brand new complete exhaust system for the Mazda RX8. This new stainless steel exhaust system features a dual muffler setup with a titanium 4 inch tips etched with the Agency Power logo.”

  “The system utilizes T304 stainless steel 3 inch piping TIG welded with 1/2 inch thick flanges. The system includes the dual resonated midpipe for those racers wanting more horsepower and sound. The center pipe features a resonator to get the perfect tone and includes the bung for the factory O2 sensor. The Agency Power catback exhaust includes strong durable hangers and connects with factory hardware.”

• Purchase link: Discontinued

Agency Power Titanium Tip Mazda RX8 exhaust video

HKS Hi-Power Mazda RX8 exhaust

• Internal pipe diameter: 76mm (3″)
• Tailpipe configuration: Single 97mm (3.8″) tip
• Primary exhaust system material: Stainless Steel with Titanium Tip
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: HKS
• Value for money:
• Our comment: Another legendary JDM tuning house enters the market, and if you thought the Agency Power exhaust was loud, HKS has arrived to cause an upset.

  For those of you that are looking for a loud, free-flowing exhaust and don’t mind the single exit look of the Hi-Power, there’s a definite bargain to be had here. Featuring a nice, deep tone, it’s not too loud if you’re light on the gas, but as soon as you put your foot down all hell breaks loose.

  The Hi-Power is one of HKS’s best selling exhausts of all time and this adjustable-length titanium-tip option has left RX8 owners rejoicing as it pops and bangs.

• Manufacturer description: “Inspired and designed from endurance and GT racing in Japan, HKS developed its Hi-Power Exhaust system for both turbocharged and naturally aspirated applications.”

  “HKS has incorporated this new race inspired offset muffler and piping design into many street applications, which offers a greater flow and higher-PRM power gains due to the less restrictive design. This is achieved by eliminating unnecessary bends for the straightest exhaust path.”

• Purchase link: HKS Hi-Power Mazda RX8 exhaust

HKS Hi-Power Mazda RX8 exhaust video

HKS Legamax Mazda RX8 exhaust

• Internal pipe diameter: 65mm (2.6″)
• Tailpipe configuration: Dual 100mm (3.9″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: HKS
• Value for money:
• Our comment: HKS return to our list with something a little different to the Hi-Power with the Legamax. This time around, they bring a far more subtle, dual-tipped offering at a higher price point.

  As you’d expect, the quality of this system is up there with the very best and it provides an incredible, clean sound, which won’t have you getting pulled over by the cops.

  If you’re after a great, clean-looking legal exhaust which is subtle when idling and cruising but comes alive when you step on the throttle, you’ll definitely want to take a look at this.

• Manufacturer description: “Legamax Exhaust Systems are designed to reduce backpressure and increase exhaust flow for greater peak power and a broader torque band. Each Legamax application utilizes a specific muffler design and shape along with the appropriate piping diameter to maintain low-end torque while maximizing high-end horsepower. All Legamax systems are made from polished SUS304 stainless steel piping.”
• Purchase link: HKS Legamax Mazda RX8 exhaust

HKS Legamax Mazda RX8 exhaust video

Borla Mazda RX8 exhaust

• Internal pipe diameter: 76mm (3″)
• Tailpipe configuration: Dual 101mm (4″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: Borla
• Value for money:
• Our comment: This is undoubtedly in the Top 3 most popular exhausts for RX8 enthusiasts with many delighted long-term owners.

  Featuring a subtle look with a clean, aggressive tone. It’s perfect for those that are looking for a high-flowing system which comes alive on the throttle and pops without destroying your eardrums.

  It may be at the higher end of the price range, but we have no doubt you’ll love this exhaust.

• Manufacturer description: “Borla Cat-Back and Rear Section exhaust systems feature patented straight through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power; driving excitement; fuel economy; and the distinctive Borla Sound of power respected enthusiasts everywhere.”
• Purchase link: Borla Mazda RX8 exhaust

Borla Mazda RX8 exhaust video

TurboXS Mazda RX8 exhaust

• Internal pipe diameter: 76mm (3″)
• Tailpipe configuration: Dual 101mm (4″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: TurboXS
• Value for money:
• Our comment: So you’ve probably looked at the price and thought to yourself “Yeah, okay. What’s the catch here?” When in fact, the TurboXS is surprisingly impressive.

  Many owners were undoubtedly tempted by the price and figured they’d give it a shot, and they’ve come back positively surprised.

  This is definitely the best bang-for-your-buck option on our list if you’re looking to go down the budget route. It provides plenty of sound without being deafening either. Highly recommended!

• Manufacturer description: “TurboXS is one of the industries leaders in aftermarket performance. Through testing they have developed this amazing RX8 catback exhaust for the Mazda RX8. This exhaust is full stainless steel with beautiful rolled tips.”
• Purchase link: TurboXS Mazda RX8 exhaust

TurboXS Mazda RX8 exhaust video

B&B (Billy Boat) Mazda RX8 exhaust

• Internal pipe diameter: Unknown
• Tailpipe configuration: Dual 101mm (4″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: B&B (Billy Boat)
• Value for money:
• Our comment: The rather amusingly-named Billy Boat exhaust is one of the rarer choices on our list. B&B are known for their great quality, and this exhaust is no exception.

  This twin-exhaust is on the louder side, but certainly not the loudest on our list. It has many happy owners, but we’d personally opt for a different choice within the price bracket.

• Manufacturer description: “Since 1985 B&B Performance Exhaust has designed, tested and manufactured the highest quality stainless steel headers and exhaust systems available. B&Bs experience has lead to evolved products that fit and sound as well as they perform, while able to withstand the harsh automotive environment. “
• Purchase link: B&B (Billy Boat) Mazda RX8 exhaust

B&B (Billy Boat) Mazda RX8 exhaust video

Tanabe Medalion Touring Mazda RX8 exhaust

• Internal pipe diameter: 70-60mm (2.75-2.35″)
• Tailpipe configuration: Dual 90mm (3.5″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2003-08)
• Manufacturer: Tanabe
• Value for money:
• Our comment: Tanabe is generally one of the more popular exhausts in our reviews, but it seems to be a rather rare choice for RX8 owners.

  Known for their exceptionally high-quality systems with lower volume levels, Tanabe are typically known as “the gentlemans choice”. If you’re after a quiet yet stylish system which won’t attract too much-unwanted attention, we highly recommend looking at Tanabe.

• Manufacturer description: “Tanabe exhaust systems are some of the finest quality exhausts in the world. Race developed and manufactured under extremely high quality standards, they excel in all categories. Performance, quality, and sound are carefully developed in each system and vehicle application. The special care we take in developing and constructing our exhausts results in the legendary ultra low deep tones that are pleasing at all rpm ranges. Tanabe exhaust systems are built for all forms of motoring.”
• Purchase link: Tanabe Medalion Touring Mazda RX8 exhaust

Tanabe Medalion Touring Mazda RX8 exhaust video (with high flow cat)

APEXi Hybrid Megaphone EVO Mazda RX8 exhaust

• Internal pipe diameter: 70-75mm (2.75-3″)
• Tailpipe configuration: Dual 105mm (4.1″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2004-11)
• Manufacturer: APEXi
• Value for money:
• Our comment: APEXi is a huge name in the tuning game, and their Hybrid Megaphone EVO RX exhaust is the cheaper of their two offerings.

  As you’ve probably guessed, based on the name, this is the loudest of their two exhausts, but it isn’t excessively so. If you’re interested in the more expensive, quieter option then make sure you take a look at the APEXi WS2.

• Manufacturer description: “The Hybrid Megaphone Evolution is a complete stainless steel exhaust system, from the main muffler canister and piping to the internal silencers, resonators, hangers, and brackets. This system provides both form and function which delivers durability, a sense of security, a comfortable sound, and overwhelming high-end power.”
• Purchase link: APEXi Hybrid Megaphone EVO Mazda RX8 exhaust

APEXi Hybrid Megaphone EVO Mazda RX8 exhaust video

Fujitsubo Legalis R Mazda RX8 exhaust

• Internal pipe diameter: 76.3-60.5mm (3-2.4″)
• Tailpipe configuration: Dual 90mm (3.5″) tips
• Primary exhaust system material: Stainless Steel
• Fitment: Mazda RX8 (2004-11)
• Manufacturer: Fujitsubo
• Value for money:
• Our comment: Bringing unique, handmade precision with every exhaust, you can always count on Fujitsubo to come up with the goods.

  This is a great option for those who are looking for a quieter aftermarket system with a deep yet subtle tone which is ideal for daily use.

• Manufacturer description: “Designed for street use, it improves both low-end and mid-range power. All LegalisR systems are constructed of Stainless Steel, and feature mandrel bent piping. Each application is tested to provide optimal power output for street use, while maintaining a deep and quiet tone, which is great for everyday use. Drivers of all ages and skill levels can appreciate the increased power output, and exceptional quality.”
• Purchase link: Fujitsubo Legalis R Mazda RX8 exhaust

Fujitsubo Legalis R Mazda RX8 exhaust video

Our winner

There’s certainly a fantastic selection on the market for RX8 owners, but we feel that the HKS Hi-Power exhaust stood above the rest this time around.

The HKS Hi-Power blew us away in terms of price and performance and for that reason, it’s our RX8 exhaust of choice.

It may not be to everyone’s taste, since it’s one of the louder choices and has a single exit, but the HKS is fantastic quality at an incredible price which is undoubtedly one of the highest-flowing systems in our guide. All-in-all, it’s a fantastic package.

If we’re purely talking about looks, performance, and sound with a higher budget, the Borla is a true competitor. We could listen to its soundtrack all day!

For those that are looking for a bargain, we’re convinced but can’t afford the hi-power, or don’t want a single exit, the TurboXS is the ultimate choice.

Not keen on the rotary powerplant? Rotor tips shot? Maybe it’s time to look at an engine swap for your RX-8?.

Thank you for reading our Mazda RX8 exhaust guide

If you enjoyed this article then please share it with the sharing buttons at the side and the bottom of your screen.

Photography credits

We would like to thank the following sources for use of their photography:

• RX8Club
• Essex Rotary Store
• Murphy (YouTube)
• Tanabe
• Black Hawk
• Enjuku Racing
• Vivid Racing

The post Ultimate Mazda RX-8 Exhaust Guide first appeared on Drifted.com.

The Mazda RX-8 is a great car, by all means, it does everything quite well, excelling especially at chassis dynamics. Mazda engineered the chassis around the RENESIS motor found beneath the bonnet, which is a good way to capitalise on the small physical size of the motor.

For a sports car, it’s also rather practical, with 4-doors, technically, and a boot. The RX-8 is only really marred by the RENESIS’s notorious lack of reliability. Nevertheless, after time, most of the common problems were debunked, and the RENESIS can be reliable if treated like a high-maintenance motor.

However, while the RX-8 was quite brisk for its time, nowadays, a normal RX-8 can feel inadequate. It’s even outpaced by many contemporary hatchbacks.

Clearly, many thought the same, which is why a performance aftermarket quickly surfaced for the RX-8.

Thus, if you are interested in squeezing out more from your RX-8, whether if it’s for drifting or road courses, here are some suggestions. Do note that the RX-8 responds pretty inertly towards most mods, and it’s not an affordable car to modify. Also, performance modifications almost always come with some adverse effect, so keep that in mind.

Modifications

The most obvious, and perhaps immediate mods that the majority will perform to the RX-8 are performance mods. More specifically, ‘breathing’ mods to help the RENESIS extract exhaust and inhale more efficiently.

Most people would think that the intake is the first to go, it’s a straightforward change to an aftermarket one. However, the efficacy of the OEM intake is already impressive. Reportedly, only AEM, Mazdaspeed and Racing Beat intakes can yield diminutive gains (2-3%). However, it may be a worthwhile investment to make for acoustics and easing maintenance access.

A mod that you’ll want to make though, is to free up the exhaust. From the factory, the RX-8’s exhaust is ample for the stock power levels, but they’ll pose a restriction further on.

A properly made exhaust header compatible with a heatshield paired to a resonated mid-pipe from reputable manufacturers, like BHR. A basic 2″ single tip catback will work well, but you’ll have to shop around for an exhaust note you’ll like.

Afterwards, it depends on how much expense you’re willing to bear. An ECU reflash with something like a COBB AccessPort or MazdaEdit is your best bet to pick up perhaps 10-20 whp with supporting mods, significant for naturally-aspirated motors.

Further Pursuit

To push for a lot more, you’re going to have to either pick forced induction, nitrous, porting, or add more rotors. Finally, you can opt for an RX-8 motor swap. It will most probably end up being the most expensive solution of course.

The most widely completed piston motor swap is an LS swap. This doesn’t make it easy though, everything must pretty much be custom fabricated to make it work on the RX-8. Fortunately, nowadays, there is a decent amount of documentation regarding the swap, and with enough skill, equipment, patience and money, this can be done in your garage.

Fortunately, the horsepower that an LS can produce is very high, with commonplace parts to modify one too.

Otherwise, you may want to look at a JZ swap. It’s been done before, not as much as the LS swap, but there are shops out there that can undertake the project. This’ll pretty much turn your RX-8 into a straight-line sprinter.

If you’re intrigued by the idea of a pseudo-Supra, you can read up on it. Of course, the horsepower ceiling of the JZ motors is ridiculous, and the support for these are huge. However, they’re expensive to push for big horsepower.

However, the most sensible choice here if you have to swap is to transplant the 13B-REW off the RX-7 into the RX-8. It’s pretty much the most similar motor to the RENESIS, however, there are still big disparities between them. There are quite a lot of information out there documenting this exact swap, so with enough research, it’s definitely achievable.

Again, the 13B-REW have been paired with turbochargers larger than itself, so that gives you an idea of the tunability.

Of course, the other way to approach this is to add more rotors. The parts needed for a 3-rotor or 4-rotor are not exactly off-the-shelf and it’ll be exorbitant if you can source them. However, the exhaust notes that a 20B and 26B produce are simply unparalleled.

It’s an orchestra to experience yourself.

Verdict

Do note that power mods aren’t everything. For a car like the RX-8, the main appeal is the impeccably balanced chassis. For any power enhancing modifications you do, you’ll also have to pay attention to the chassis balance.

If you are interested do a lot of reading before taking on the motor swap, and enjoy your RX-8!

Author: Lee Keynes

The post RX-8 Motor Swap first appeared on Drifted.com.