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RX8 OEM Aftermarket Parts: Upgrades, Replacements and Performance Options

RX8 OEM aftermarket parts are the non-genuine replacements and performance upgrades Mazda RX8 owners reach for when they want reliable, purpose-built alternatives to stock components. Whether you are refreshing a worn component or building toward a specific performance goal, this range gives you considered options across cooling, drivetrain, handling and more.

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$ 20 — $ 13000

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RX8 magnetic sump plug with GReddy black hex head, threaded body and separate sealing washer

GREDDY TRUST Super Magnetic Oil Pan Sump Plug for Mazda RX8 (Series 1 & 2, 2003-2012)

A 5000 gauss neodymium magnet intercepts fine ferrous debris at every oil change, protecting Renesis apex seals and bearings between service intervals.

$70 inc GST

Mazda RX8 carbon side decals in black HASEPRO retail packaging on timber floor

HASEPRO Carbon Side Decal Dress-Up Set (2) for Mazda RX8 (Series 1 & 2, 2003-2012)

Pre-cut carbon-look side decals add a sharp profile accent to the RX8 body lines while leaving the original paint untouched beneath.

$150 inc GST

RX8 headlight protection film graphic showing a curved pre-cut sheet and before-after headlight panels

HASEPRO Magical Art Revival Pre-Cut Headlight Protection and Restoration Film for Mazda RX8 (Series 2, 2009-2012)

Applies directly over yellowed 2009-2012 lenses to restore clarity and block further UV damage. Pre-cut for Series 2 headlights, no trimming needed.

$180 inc GST

HKS RX8 metal catalyser with polished converter body, heat shield and flanged pipe ends

HKS Metal Catalyzer for Mazda RX8 (Series 1 & 2, 2003-2012)

A 150-cell metallic-core catalytic converter that flows more freely than the factory ceramic unit, sharpening the Renesis exhaust note without decat harshness.

Original price was: $2,600.Current price is: $2,179. inc GST

KTS Mazda RX8 suction tube for Series 1 and Series 2 models

KTS Induction Suction Tube for Mazda RX8 (Series 1 & 2, 2003-2012)

Swap the factory rubber intake pipe for a rigid polished aluminium tube. Sharper throttle feel, stable airflow geometry, cleaner engine bay.

$250 inc GST

RX8 coilovers Australia KTS SC set with four black-spring dampers and blue mounts

KTS SC Damper System Coilover Set for Mazda RX8 (Series 1 & 2, 2003-2012)

Monotube Japanese coilovers with 15-way damping and full ride-height adjustment. The sporting RX8 coilover kit Australia enthusiasts have been asking for.

$1,860 inc GST

Six RX8 rear window buttons in black, blue and red on aluminium tread plate

LEG MOTORSPORT Anodized and UV Resistant Rear Window Button x2 (Black) for Mazda RX8 (Series 1 & 2, 2003-2012)

Anodised aluminium RX8 rear window buttons replace degraded original plastic. UV-resistant black finish holds colour in direct Australian sun.

$50 inc GST

Six RX8 rear window buttons in black, blue and red on aluminium tread plate

LEG MOTORSPORT Anodized and UV Resistant Rear Window Button x2 (Blue) for Mazda RX8 (Series 1 & 2, 2003-2012)

Anodised aluminium replacements for worn plastic rear latch buttons. UV-resistant blue finish keeps both RX8 rear window buttons matched and sharp.

$50 inc GST

Six RX8 rear window buttons in black, blue and red on aluminium tread plate

LEG MOTORSPORT Anodized and UV Resistant Rear Window Button x2 (Red) for Mazda RX8 (Series 1 & 2, 2003-2012)

Anodised aluminium RX8 rear window buttons replace faded plastic latch trims with durable, UV-resistant red to lift the cabin finish.

$50 inc GST

RX8 leather gearboot surround fitted to centre console with red stitching

LEG MOTORSPORT Leather Gearboot Surround (Red Stitch) for Mazda RX8 (Series 1 & 2, 2003-2012)

Genuine leather and red contrast stitching refresh the shift area, matching the look of factory RS and Spirit R trim without modification.

$150 inc GST

Mazda RX8 elbow side cushion sealed in clear packaging with red stitching

LEG MOTORSPORT Sport Elbow Side Cushion (Red Stitch) for Mazda RX8 (Series 1 & 2, 2003-2012)

Real leather console-side elbow rest with red stitching, adding genuine comfort to the RX8 cabin for every Series 1 and Series 2 owner.

$150 inc GST

RX8 Series 1 intake airbox interior with polished circular funnel and ribbed walls

ODULA Big Racing Intake Funnel for Mazda RX8 (Series 1 & 2, 2003-2012)

Drops into the OEM airbox to open intake volume and sharpen throttle response. Retains the factory engine cover and bay layout.

$180 inc GST

RX8 big bore throttle front view showing gold butterfly plate and black actuator housing

ODULA BIG-BORE Throttle Body for Mazda RX8 (Series 1 & 2, 2003-2012)

Widens the intake passage by approximately 2 mm for sharper throttle response across the rev range. A strong addition to any intake build.

$750 inc GST

RX8 carbon dash panel angled front view showing three circular meter openings

ODULA Carbon Meter Dash Panel for Mazda RX8 (Series 1, 2003-2008)

Highest-grade carbon meter surround made in Japan by ODULA, replacing the standard Series 1 instrument trim with a precise, driver-focused finish.

$450 inc GST

Mazda RX8 fresh air grille on silver Series 2, close front view

ODULA Fresh Air Grille (Carbon Fibre) for Mazda RX8 (Series 2, 2009-2012)

Carbon fibre lower-bumper insert that opens the Series 2 front inlet, directing 30% more air into the engine room with a clean composite finish.

$800 inc GST

ODULA Mazda RX8 piano black grille for Series 2 models

ODULA Fresh Air Grille (Piano Black) for Mazda RX8 (Series 2, 2009-2012)

Replaces the Series 2 front opening insert with a deep gloss piano black finish, adding 30% more airflow into the engine bay.

$750 inc GST

RX8 intake manifold protector installed beneath intake runners with curved metal pipe passing through cut-out

ODULA Intake Manifold Heat Protector for Mazda RX8 (Series 1 & 2, 2003-2012)

Japanese-made heat shield blocking radiant heat from the intake manifold. Essential when an aftermarket exhaust manifold is fitted.

$120 inc GST

RX8 OMP heat shield installed vertically beside oil metering pump and wiring

ODULA Oil Metering Pump Heat Shield for Mazda RX8 (Series 1, 2003-2008)

Stainless steel barrier mounts between the exhaust manifold and OMP, shielding a critical lubrication component from damaging radiant heat.

$110 inc GST

RX8 polyurethane differential mounts with metal sleeves displayed upright on dark fabric

ODULA Polyurethane Reinforced Differential Mounts for Mazda RX8 (Series 1 & 2, 2003-2012)

Reinforced urethane mounts that eliminate diff movement under load, sharpening rear-end feel and reducing axle tramp on corner exits.

$250 inc GST

RX8 exhaust earth strap pair laid separately on a white background

ODULA Racing Exhaust Earth Strap Set for Mazda RX8 (Series 1 & 2, 2003-2012)

Grounds the RX8 exhaust system with nickel-plated straps rated to 1400°C, cutting static buildup that interferes with sensors and audio.

$80 inc GST

What owners are saying

RE-AMEMIYA Additional RHS Oil Cooler for Mazda RX8 (Series 1, 2003-2008) RE-AMEMIYA Additional RHS Oil Cooler for Mazda RX8 (Series 1, 2003-2008)

I have the oil cooler fitted recently Jarl, with a MazdaSpeed (RHS) oil cooler Try to get the MazdaSpeed or the US, Hong Kong or Japan spare parts. I suspect they are different but what the hell it is still an oil cooler. Japan does not have oil cooler in the Type S as standard but most people will have that as option. Certainly they mostly opted for the MazdaSpeed version of the oil cooler (btw it looks the same as the other one I have now ) There are many oil cooler available as an aftermarkey option, such as HKS and Fujita engineering, just to name two. They are very pricey and go over the $1000 mark. So I choose the $600 MazdaSpeed one instead. What you need is a garage, really. I will recommend changing oil and oil filter at the same time. It does mean a cleaner job. Make sure you take care of the joints and prepare for an oil leak (did have some on my installation). The right oil cooler gets the first of the oil from the central (engine) side and they travel to the left (stock) one before going back to central. There is a bass tube (as shown in the attachement above) to connect the right to the left oil cooler. Get a quote for $300 installation since it will take someone 6 hours to do (inc changing oil). Make sure they run the car for 10 minutes before putting the front bumper back up, just to see if there are still leaks. Result is amazing, central console is not hot anymore, well... it is cooler than what it has been. Say the temp in the cup holder used to be like the upper tray of the coffee machine (the area that warms the cup). Now it is like the keyboard of your laptop, still warm but certainly the house key I put in the cup holder will not burn my finger anymore. MazdaSpeed oil cooler is race proven. In BestMotoring, people raced for 20 minutes in the heat, MazdaSpeed oil cooler has a oil temp of 100 degree cel, but the S2K and Integra are running at 130 degree plus.

GREDDY TRUST Aluminium Racing Radiator TW-R for Mazda RX8 (Series 1, 2003-2008) GREDDY TRUST Aluminium Racing Radiator TW-R for Mazda RX8 (Series 1, 2003-2008)

Huge shout out to RX8 Upgrades for all the bling bits he's supplied so far for my series 1 Steering wheel , GReddy Radiator , Odula intake , Extractors , OMP sheild , Brass gear stick bush , Alternator , GReddy pulley set , New gear stick boot , Magnetic sump plug with a lot more to come ! One of the nicest guys to deal with as well for parts and knowledge on Mazdas is next level !

AUTOEXE Motion Control Beam Front and Rear for Mazda RX8 (Series 2, 2009-2012) AUTOEXE Motion Control Beam Front and Rear for Mazda RX8 (Series 2, 2009-2012)

Night and day difference, even on a bone stock suspension. While installing the AutoExe front strut bar greatly enhanced steering response and turn in, the handling improvements from it was very subtle. Likewise with the AutoExe tie bars installed in the front and back of the car. More solid feel, less suspension parts deflection under cornering loads. These Motion Control Beams took away the vibrations that are slightly felt in the steering wheel from small road surface imperfections. It also took away the bumps felt from pavement gaps and mostly the rumble felt from railway crossings and brick roads. Going through small pot holes and road patches, the stock suspension is finally doing its job to dampen away those bumps and doesn't get fully transmitted throughout the entire car. Big bumps, you don't hear a loud hollow "thump" emanating from the back of the car. Just a solid "thud". The car used to understeer and now it hardly does. It handles quite neutral now, even on bone stock open differential, and did I already say bone stock suspension? This is win win, all around, without sacrificing anything.

RX8 OEM aftermarket parts are the non-genuine replacements and upgrades built to a documented application, chosen by owners who want a reliable alternative without compromising on fit or purpose. Therefore, consider where each part sits in your build and what standard you want the car to meet.

This collection spans straightforward replacements for worn components through to purposeful upgrades. For example, these improve response, cooling, control and everyday drivability. Every part listed here has a documented application. Also, check individual product compatibility before ordering, particularly if your car has already been modified.

Mazda RX8 aftermarket parts for every stage of ownership

Owners searching for RX8 aftermarket parts Australia-wide will find a specialist catalogue here, not a general-purpose parts site. That distinction matters. For example, the rotary engine has specific demands around cooling, oil management and airflow. A generic catalogue does not account for those demands. Therefore, the options in this range are selected with those requirements in mind.

What this range covers

  • Maintenance and replacement: A new aftermarket component fitted to a known specification is more dependable than a used genuine part. Moreover, an unknown service history adds risk across cooling hoses, filters, sensors and seals.
  • Mazda RX8 upgrade parts: Where a stock component is functional but limiting, an upgrade part helps. For example, it can improve throttle response, reduce heat soak or tighten handling consistency. Therefore, target the area that matters most to how you drive.
  • RX8 performance parts work best as part of a coherent plan. For instance, an intake upgrade pairs naturally with an exhaust improvement. Similarly, a handling change often calls for complementary tyre and alignment work. Think in systems, not individual items.
  • Fitment confidence: Always confirm the stated application and series compatibility before purchase. In addition, fitment details are listed per product and are the reliable reference point.

Aftermarket versus genuine: choosing the right approach

The decision between genuine and aftermarket components is not always straightforward. Genuine Mazda parts remain the factory-correct choice where original calibration and fit are non-negotiable. In addition, for some safety-critical or emissions-related components, that is clearly the right call.

However, for the broader range of RX8 OEM aftermarket parts, a quality aftermarket alternative can match or exceed the original. This applies particularly to performance, cooling, suspension and interior upgrades.

Finally, browse with a clear idea of the job each component needs to do. Select on documented purpose, confirmed fitment and how each part contributes to your build. As a result, the right RX8 OEM aftermarket parts keep your car consistent, whether as reliable daily transport, a refined weekend driver or a car built to perform.

Frequently Asked Questions

What is the difference between genuine Mazda parts and aftermarket parts for the RX8?

Genuine Mazda parts are factory-original components made to the exact specification the car was built with, which matters where precise calibration or OEM fit is critical. Aftermarket parts are non-genuine alternatives that may suit owners seeking a specific replacement solution, a performance upgrade, or a component that better fits their build direction. The right choice depends on the part's role and your priorities for the car.

Are aftermarket parts suitable for a standard RX8 that just needs a repair?

Yes, many aftermarket parts are a practical choice for straightforward repairs or component replacement on an otherwise standard RX8. Choosing a quality new aftermarket part avoids the uncertainty of fitting a used component with an unknown service history. Always check the individual product's stated compatibility before ordering.

How do I know if an aftermarket part will fit my RX8?

Check the fitment and compatibility information listed on each individual product page before purchasing. The RX8 was produced in two series with some differences between them, so confirming your car's series and build details is important. If you are unsure, the product description will specify which variants or model years the part suits.

Can aftermarket parts be used as part of a performance build on an RX8?

Aftermarket parts are commonly used in performance-focused RX8 builds to refine specific areas such as response, cooling, control or power delivery. The key is selecting components that work together as part of a considered plan rather than fitting them in isolation. Review each part's intended application and how it interacts with the rest of your setup.

Is it safe to use aftermarket parts on a rotary engine like the RX8?

Rotary engines have specific operating characteristics that make part selection particularly important, and quality aftermarket components from reputable manufacturers are widely used on RX8s without issue. The critical step is ensuring the part is appropriate for its intended application and compatible with your car's current state of tune or modification. Always review individual product specifications and, where relevant, consult a specialist familiar with rotary engines.

Do aftermarket parts void my RX8's warranty?

Warranty implications depend on the age of your vehicle, the nature of the warranty in question, and Australian consumer law as it applies to your situation. Most RX8s in circulation are well beyond their original manufacturer warranty period. For any vehicle still under a dealer or extended warranty, it is worth confirming with that provider before fitting non-genuine components.

Are RX8 aftermarket parts available for both Series 1 and Series 2 models?

Availability varies by part and category. Some aftermarket components are compatible across both RX8 series, while others are specific to Series 1 or Series 2 due to differences in engine management, body panels or other specifications. Each product listing will state which series or model years it suits, so always verify fitment before ordering.