View cart “BMW 550i (2012-2016) Stage 1 Performance ECU Tune (N63)” has been added to your cart. $4,399.00 McLaren 650S 2014-2017 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: McLaren 650S 2014-2017 Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: McLaren 650S Tags: 650s, Dyno, ecu tune, mclaren, stage 1, stage 2, tune Description Description +50 Horsepower +45 Torque Performance ECU Tune for the McLaren 650S (2014-2017) Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW 335i (2007-2011) Stage 1 Performance ECU Tune (N54) $599.00 Select Options BMW 235i (2012+) Stage 1 Performance ECU Tune (N55) $949.00 Select Options BMW M3 F80/F82 (2015-2016) Stage 1 Performance ECU Tune $1,099.00 Select Options BMW 135i Stage 1 Performance ECU Tune (N54) $599.00 Select Options