$1,099.00 Mercedes SL63 2008-2011 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 Additional options total: Order total: Mercedes SL63 2008-2011 Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: SL63 Tags: benz, Dyno, ecu tune, mercedes, sl63, stage 1, stage 2, tune Description Description +25 Horsepower +40 Torque Performance ECU Tune for the Mercedes SL63 2008-2011 Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW 535i (2011-2016) Stage 1 Performance ECU Tune (N55) $999.00 Select Options BMW 535i (2008-2010) Stage 1 Performance ECU Tune (N54) $999.00 Select Options BMW M3 E90/E92 (2008-2013) Stage 1 Performance ECU Tune (S65) $799.00 Select Options BMW M3 F80/F82 (2015-2016) Stage 2 575 Performance ECU Tune $2,599.00 Select Options