$999.00 BMW 1M Stage 1 Performance ECU Tune (N54) 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 1M Stage 1 Performance ECU Tune (N54) quantity — OR — Add to cart Category: 1M Tags: 1m, bmw, Dyno, ecu tune, n54, stage 1, stage 2, tune Description Description +90 Horsepower +150 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 435i (2012+) Stage 1 Performance ECU Tune (N55) $999.00 Select Options BMW 545i (2003-2005) Stage 1 Performance ECU Tune (E60) $599.00 Select Options BMW M5 E6x (2006-2011) Stage 1 Performance ECU Tune $599.00 Select Options