Audi RS4/RS5 B9 Stage 1 ECU Tune – 2.9TT EA839 V6 Turbo S Compatibility: GM LS Gen 3

Compatibility: GM LS Gen 3 and Gen 4 engines

downpipes are a mandatory prerequisite

Polished stainless steel or black finish

Ceramic-Coated Piston Tops — Thermal barrier coating on all 8 piston crowns reduces heat transfer and detonation risk at high boost

Audi RS4/RS5 B9 Stage 1 ECU Tune – 2.9TT EA839 V6 Turbo S Compatibility: GM LS Gen 3SPEC STOCK YPG TUNED GAIN Power 450 HP 520 HP +70 HP Torque 600 Nm 690 Nm +90 Nm 2. 9T Elevate your Audi RS4 or RS5 B9 with YPG Motorsport's Stage 1 ECU Tune for the 2. 9 liter twin turbo V6 TFSI engine. This calibration unlocks substantial power gains through optimized boost targets, ignition timing, and fueling strategies all on stock hardware with zero additional modifications required. Performance Gains Up to +70 HP over stock Up to +90 Nm