Audi RS5 B8 Performance Parts & Tuning Mods

Popular Brands For Audi RS5 B8 Mods

The Audi RS5 B8 is well supported by several top performance brands, offering everything from exhausts and intakes to suspension kits and styling upgrades. Browse trusted manufacturers known for proven tuning parts and quality engineering for your RS5.

Audi RS5 B8 Exterior Styling Upgrades

You can give your Audi RS5 B8 a much sharper, more aggressive look with a range of exterior styling upgrades, from body kits, splitters and diffusers to spoilers, custom grilles and trim details. These visual mods help your RS5 stand out, whether you are going for subtle OEM+ or full track-inspired presence.

Handling & Suspension Upgrades

The Audi RS5 B8 is a serious bit of kit out of the box, but there is still plenty of room to sharpen up the cornering and overall agility. A good starting point is tyres, going for a quality performance tyre with a slightly more aggressive compound instantly improves grip and steering feel. Combine that with uprated brake pads, braided lines and better discs and you get far more confidence on fast road and track, with stronger bite and less fade on repeated hard stops. From the factory the RS5 B8 can feel a little nose heavy and prone to gentle understeer if you really lean on it, especially on softer OEM suspension. Quality lowering springs or a well set up coilover kit reduce the ride height, cut body roll and make the car feel tighter without wrecking day to day comfort if you choose sensibly. Adding stiffer anti roll bars, a front strut brace and uprated bushes helps the chassis stay more neutral, so it rotates better into bends and feels more stable mid corner. If you work in stages, tyres and brakes first, then suspension tuning and chassis bracing, you end up with a more responsive and playful RS5 that still behaves nicely on the daily commute.

Audi RS5 B8 Frequently Asked Questions

What are the best first performance mods for an Audi RS5 B8?

For most Audi RS5 B8 owners, the best first upgrades are breathing and handling mods. A high quality panel filter or intake kit, a cat back exhaust, and fresh performance brake pads will make the car feel sharper without going overboard.

After that, look at suspension and wheel upgrades. A decent set of coilovers or lowering springs, plus lighter alloys with good tyres, will transform turn in and grip and make the most of the RS5’s quattro chassis.

Is it worth remapping or tuning the Audi RS5 B8’s 4.2 V8?

The 4.2 FSI V8 in the RS5 B8 is naturally aspirated, so you will not see turbo level gains from a remap, but a well written ECU tune can still improve throttle response, mid range torque and drivability. It can also be used to optimise the map for bolt on mods like an intake and exhaust.

Most owners notice smoother power delivery, better part throttle response and a more eager feel at the top of the rev range. For the best results, combine your remap with supporting mods, then have the car set up on a reputable dyno.

How will an aftermarket exhaust system affect my Audi RS5 B8?

An upgraded exhaust on the Audi RS5 B8 mainly improves sound and flow. A cat back or valved performance exhaust will free up some restriction, drop a bit of weight and really let the V8 soundtrack come through, especially at higher revs.

Power gains from a cat back alone are modest, but when combined with an intake, high flow cats or downpipes and a suitable tune, you can see a small but noticeable improvement in horsepower and torque. Always check local noise and emissions rules before going too aggressive with your exhaust mods.

Will tuning and mods affect the reliability of my Audi RS5 B8?

Mild performance upgrades like an intake, cat back exhaust, ECU remap and suspension kits are generally safe on a well maintained RS5 B8, as long as the car is serviced on time and driven sensibly when cold. The key is to use quality parts and have all mapping work carried out by an experienced VAG specialist.

More extreme builds, such as high compression engine work or forced induction conversions, will increase stress on components and can shorten the life of the engine and drivetrain if not done and maintained properly. Whatever your tuning plans, budget for regular oil changes, top quality fluids and preventative maintenance.

What wheel and tyre setup works best on a tuned Audi RS5 B8?

The factory RS5 B8 wheels are already quite aggressive, but many owners move to lightweight 19 or 20 inch alloys with a slightly wider tyre for better grip and stance. The key factors are correct offset, brake clearance and maintaining an overall rolling radius close to stock.

For fast road and occasional track use, a quality UHP or semi slick tyre on a strong, light rim will make a bigger difference than most power mods. If you go very low on coilovers or air suspension, be prepared to fine tune camber and alignment to avoid rubbing and uneven tyre wear.

Is the Audi RS5 B8 a good base for track days, and what mods help most?

The Audi RS5 B8 can be a solid track day car if you focus on chassis and braking upgrades first. Performance brake pads, uprated fluid, braided lines and, if needed, bigger discs or calipers will cope far better with repeated hard stops.

Next, look at coilovers or quality sport dampers and springs, adjustable alignment, and sticky tyres on strong rims. Engine tuning, intakes and exhausts are the icing on the cake once the RS5 can reliably handle the extra pace lap after lap.

How much should I budget for basic Audi RS5 B8 performance upgrades?

For a sensible first stage of mods on an Audi RS5 B8, expect to budget for an intake, a cat back exhaust, an ECU remap and some brake and suspension tweaks. In most cases this puts you into the low to mid four figure range, depending on brands and whether you fit parts yourself or use a specialist.

More advanced work, like full exhaust systems with sports cats, big brake kits, high end coilovers or serious engine tuning, will push costs up quickly. It is always worth planning a long term upgrade path so you only buy parts once and choose performance parts that work well together.

Final Thoughts on the Audi RS5 B8

The RS5 B8 is a proper all rounder, a high revving V8 coupe with quattro grip and real everyday usability. Out of the box it is a quick, capable road car that sounds good, looks aggressive and feels special from behind the wheel. The character is all about that naturally aspirated shove up top and the confidence you get in mixed weather, which is exactly why it makes such a satisfying base for tuning and sensible performance upgrades. Once you start adding breathing mods, a quality ECU calibration and a less restrictive exhaust, the RS5 B8 feels sharper and more eager without turning it into something temperamental. Chassis upgrades like coilovers or sport springs, uprated anti roll bars and better wheels and tyres tidy up the body control and steering response, especially if you find the standard suspension a bit soft when you push on or do the odd trackday. Brake pads, fluid and braided lines tackle the common complaint of fade when driven hard, giving you more confidence lap after lap. We have seen plenty of RS5 B8 builds where the main weak points are addressed before chasing every last horsepower. The S tronic gearbox and clutch packs are strong, but if you increase torque you want a suitable transmission tune and regular servicing so it stays reliable. Keeping on top of cooling, intake temps and basic maintenance means you can enjoy the extra performance without compromising daily use or long distance comfort. With the right balance of power mods, handling upgrades and subtle styling tweaks, the RS5 B8 turns into a very personal and very rewarding package. You are not trying to turn it into a stripped out race car, just refining what is already there and tailoring it to your driving style. Treated properly and modified with good quality parts, it remains a fast, dependable GT that you will actually want to drive, whether that is a Sunday blast, a track evening or the daily commute. It is a brilliant platform for tuning, and there is a clear path for any owner to build an RS5 B8 that fits their own taste and performance goals.