RENNtech ECU+ Upgrade | R231 | SL 63 AMG | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo lamborghini-urus--2018-present--4-0l-v8-fsi-twinturbo-esr5300432 The Carbon Fiber Rear Wing

The Carbon Fiber Rear Wing for the Mercedes-Benz AMG GT Coupe dramatically improves rear-end stability with an aggressive yet highly functional design

optimizing air-to-fuel-ratios

Street-Legal and/or Non-Performance tires

Rated by RENNtech (peak @crank):              773 HP @ 5

RENNtech ECU+ Upgrade | R231 | SL 63 AMG | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo lamborghini-urus--2018-present--4-0l-v8-fsi-twinturbo-esr5300432 The Carbon Fiber Rear WingECU+ Upgrade Up to 669HP 734TQ Gains: +65 HP +55TQ RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be