Mercedes Benz S550 ECU Tune Stage:Stage 2 +111HP +147TQ Experience customizable exhaust tones with

Experience customizable exhaust tones with valves controlled by the OEM factory actuator

Factory 570 HP / 398 lb-ft

Reprogrammed throttle response

a mid X-pipe

Items included is the Gintani Huracán rear section

Mercedes Benz S550 ECU Tune Stage:Stage 2 +111HP +147TQ Experience customizable exhaust tones withTuned 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