$1,000.00 House of Power Stage 1 Mercedes S400 2015+ ECU Tuning 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 S400 2015+ Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: Mercedes S-Class Tags: 4 matic, benz, Dyno, ecu tune, mercedes, s400, stage 1, stage 2, tune, turbo, w222 Description Description +60 Horsepower +60 Torque Performance ECU Tune for the Mercedes S400 2015+ Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW 235i (2012+) Stage 1 Performance ECU Tune (N55) $949.00 Select Options BMW 535i (2008-2010) Stage 1 Performance ECU Tune (N54) $999.00 Select Options BMW 435i (2012+) Stage 1 Performance ECU Tune (N55) $999.00 Select Options BMW M3 E90/E92 (2008-2013) Stage 1 Performance ECU Tune (S65) $799.00 Select Options