View cart “BMW M3 E90/E92 (2008-2013) Stage 1 Performance ECU Tune (S65)” has been added to your cart. $1,099.00 Note: Stage 2 is available and is for a catless application BMW 550i (2006-2010) 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: BMW 550i (2006-2010) Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: BMW 550i Tags: 550i, bmw, Dyno, ecu tune, n63, stage 1, stage 2, tune Description Description +30 Horsepower +30 Torque Performance ECU Tune Features Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products Nissan 370z EcuTek Tune $1,000.00 Select Options BMW 545i (2003-2005) Stage 1 Performance ECU Tune (E60) $599.00 Select Options BMW 135i Stage 1 Performance ECU Tune (N54) $599.00 Select Options BMW 435i (2012+) Stage 1 Performance ECU Tune (N55) $999.00 Select Options