“BMW 135i Stage 1 Performance ECU Tune (N54)” has been added to your cart. View cart $1,099.00 BMW M3 F80/F82 (2015-2016) 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 M3 F80/F82 (2015-2016) Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: M3 Tags: bmw, Dyno, ecu tune, f80, f82, m3, stage 1, stage 2, tune Description Description +165 Horsepower +200 Torque Performance ECU Tune Features Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW 335i (2011-2013) Stage 1 Performance ECU Tune (N55) $999.00 Select Options BMW 135i Stage 1 Performance ECU Tune (N54) $599.00 Select Options BMW 335d (2007-2008) Stage 1 Performance ECU Tune (N57) $1,099.00 Select Options BMW 428i Stage 1 Performance ECU Tune (N20) $999.00 Select Options