MMX Plug-In Engine Tuning Box ECU Piggyback Module for BMW M4 F82/F83 S55 3.0 Twin-Turbo Coupe and Convertible Vehicle model:BMW F82 & F83 M4 Competition (S55) Immediate steering precision and improved

Immediate steering precision and improved front axle grip

Quicker throttle reaction and improved in-gear acceleration feel

sharper throttle response and a premium twin oval chrome finish that looks perfect under the bumper

Feedback is consistently positive - strong initial bite

F34 Gran Turismo including: 316d

MMX Plug-In Engine Tuning Box ECU Piggyback Module for BMW M4 F82/F83 S55 3.0 Twin-Turbo Coupe and Convertible Vehicle model:BMW F82 & F83 M4 Competition (S55) Immediate steering precision and improvedTransform the way your BMW M4 drives with this MMX performance module for the S55 3. 0 twin turbo engine in the F82 coupe and F83 convertible. Expect a serious uplift in bhp and torque, crisper throttle response and harder, cleaner acceleration across the rev range. It is the ideal remap alternative for owners who want big gains without opening or flashing the factory ECU. The MMX unit sits as a high quality piggyback between engine sensors and the