$1,499.00 Mercedes G55 2012+ 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: Mercedes G55 2012+ Stage 1 Performance ECU Tune quantity — OR — Add to cart Category: G55 Tags: benz, bi turbo, Dyno, ecu tune, g55, mercedes, stage 1, tune, turbo Description Description +TBD Horsepower +TBD Torque Performance ECU Tune for the Mercedes G55 2012+ Eliminate Top Speed Limiter Increased Throttle Response Optimized Fuel and Spark Optimized for 93 Octane Related products BMW 550i (2012-2016) Stage 1 Performance ECU Tune (N63) $2,499.00 Select Options Nissan 370z EcuTek Tune $1,000.00 Select Options BMW 550i (2006-2010) Stage 1 Performance ECU Tune $1,099.00 Select Options BMW 335i (2011-2013) Stage 1 Performance ECU Tune (N55) $999.00 Select Options