“BMW M3 E90/E92 (2008-2013) Stage 1 Performance ECU Tune (S65)” has been added to your cart. View cart $1,099.00 Audi S6 2006-2011 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 $1,099.00 Additional options total: $0.00 Order total: $1,099.00 Audi S6 2006-2011 Performance ECU Tune quantity — OR — Add to cart Category: Audi S6 Tags: audi, Dyno, ecu tune, s6, stage 1, stage 2, tune Description Additional information Description +25 Horsepower +25 Torque Performance ECU Tune for the Audi S6 Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Additional information Stage 2 Stage 2 Related products BMW 428i Stage 1 Performance ECU Tune (N20) $999.00 Select Options BMW 335d (2007-2008) Stage 1 Performance ECU Tune (N57) $1,099.00 Select Options BMW M5 F10/F13 (2012-2016) Stage 1 Performance ECU Tune $2,499.00 Select Options BMW 135i Stage 1 Performance ECU Tune (N54) $599.00 Select Options