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Factory 306 HP / 295 lb-ft
Factory 503 HP / 505 lb-ft
BMW 640i (2012-2016) performance ECU tune
Mercedes Benz E550 ECU Tune Stage:Stage 1 +171hp +307Tq You will be charged returnTuned by Alex Gintani himself, Gintani Tunings ECU Software is guaranteed to give you more horsepower, torque, and a more exhilarating driving experience by delivering usable power through improved throttle response and torque management. With additional ft. lbs. of torque through the mid range, acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range. Gintani saves your stock factory ECU settings
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