“BMW 550i (2006-2010) Stage 1 Performance ECU Tune” has been added to your cart. View cart $2,599.00 Mercedes SL63 2012+ Stage 1 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 $2,599.00 Additional options total: $0.00 Order total: $2,599.00 Mercedes SL63 2012+ Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: SL63 Tags: benz, Dyno, ecu tune, mercedes, sl63, stage 1, tune Description Description +170 Horsepower +310 Torque Performance ECU Tune for the Mercedes SL63 2012+ Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW M5 E6x (2006-2011) Stage 1 Performance ECU Tune $599.00 Select Options BMW 435i (2012+) Stage 1 Performance ECU Tune (N55) $999.00 Select Options BMW 235i (2012+) Stage 1 Performance ECU Tune (N55) $949.00 Select Options BMW 535i (2008-2010) Stage 1 Performance ECU Tune (N54) $999.00 Select Options