Mercedes Benz E550 ECU Tune Stage:Stage 1 +171hp +307Tq Made in the USA

Made in the USA

Reprogrammed torque management parameters

acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range

Factory 306 HP / 295 lb-ft

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Mercedes Benz E550 ECU Tune Stage:Stage 1 +171hp +307Tq Made in the USATuned 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