Mercedes Benz CLS550 ECU Tune 550i All of our products are

All of our products are for closed circuit use only

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Factory 382 HP / 369 lb-ft

Factory 444 HP / 433 lb-ft

Mercedes Benz CLS550 ECU Tune 550i All of our products areTuned 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