RS4 / RS5 Tuning Packages

The Audi RS4 and RS5 are two of the most capable and tuneable performance cars Audi has ever built. Powered by the 2.9 TFSI twin-turbo V6, paired with the latest Quattro drivetrain and a highly responsive ZF8 gearbox, the platform delivers enormous tuning potential straight from the factory. With its strong internals, efficient turbochargers and intelligent AWD system, the RS4/RS5 responds exceptionally well to both ECU recalibration and staged hardware upgrades.

With the right tuning, the RS4 and RS5 transform from fast executive sport models into genuinely supercar-challenging machines — delivering explosive mid-range torque, razor-sharp throttle response and relentless top-end performance, all while maintaining OEM comfort and refinement.

At Boost Performance, we specialise in RS4 and RS5 custom tuning, offering everything from Stage 1 ECU remaps to hybrid-turbo conversions. Every calibration is developed and verified on our World-Class Dyno, ensuring consistent, safe and repeatable power gains you can trust on the road or track.

STAGE 2 — BOLT-ONS + ECU TUNE

Power: 510–540hp
(Varies with intake + downpipe setup)

Supporting Hardware

• High-flow downpipes (sports cat or decat)

• Performance intake system (open or closed airbox)

• Optional intercooler upgrade

• ECU recalibration for Stage 2 hardware

• Optional TCU gearbox tune

What’s Included

• Full Stage 2 ECU calibration

• Dyno tuning session

• Heat management optimisation

• Enhanced boost control

• Logging, safety checks & adaptation review