“BMW 550i (2006-2010) Stage 1 Performance ECU Tune” has been added to your cart. View cart $2,499.00 Audi RS6 4.0L 2010+ Performance ECU Tune Want to add even more Horsepower? Upgrade to Stage 2 ECU Tune. (Catless Application) Adds an approx. 30-40 additional Horsepower! Check the box below: Upgrade to Stage 2 + $399.00 Product price $2,499.00 Additional options total: $0.00 Order total: $2,499.00 Audi RS6 4.0L 2010+ Performance ECU Tune quantity — OR — Add to cart Category: Audi RS6 Tags: audi, Dyno, ecu tune, rs6, stage 1, stage 2, tune Description Additional information Description +120 Horsepower +320 Torque Performance ECU Tune for the Audi RS6 Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Additional information Stage 2 Stage 2 Related products BMW 328i E90/E92 Stage 1 Performance ECU Tune (N52) $499.00 Select Options BMW M5 E6x (2006-2011) Stage 1 Performance ECU Tune $599.00 Select Options BMW 428i Stage 1 Performance ECU Tune (N20) $999.00 Select Options BMW 435i (2012+) Stage 1 Performance ECU Tune (N55) $999.00 Select Options