The iE Stage 3 engine and transmission tune for PURE800 turbochargers completely redefines your RS5’s performance. Every element of the calibration is engineered to extract maximum power and torque while maintaining the smooth drivability Audi is known for. Our advanced tuning strategy optimizes boost control, ignition, fueling, and torque management to deliver an exceptionally broad, flat powerband with near-instant response and negligible lag. Paired with our matching TCU tune, shifts are faster, smarter, and perfectly balanced to harness every bit of performance. The result is an RS5 that feels factory-refined at cruise—and brutally fast when you demand it.

After extensive research and hybrid turbocharger testing, iE engineers and calibrators chose the PURE800 as their first pick for kickball. iE's Stage 3 calibration, combined with its big top-end power and responsive boost with minimal lag, all wrapped up in an easy, direct bolt-in install, makes it the ultimate blend of modern vehicle tech and raw, chest-pounding performance. Turbo sold separately.

Ethanol-blended fuel provides the maximum power for iE Stage 3 with Pure800 Turbos. TrueFlex adds our advanced flex-fuel programming to your engine control computer, automatically adjusting engine mapping in real-time to match the exact ethanol blend, eliminating guesswork, and ensuring maximum safe power at all times.