Mercedes-AMG SL 63 (R232) & AMG GT 63 (C192) | RPM ECU-Upgrade | 4.0 L BiTurbo | up to 725 HP | 765 LB-FT | +100 HP +84 LB FT mercedes-benz-amg-gt--190---2015-2022--amg-gt-black-series-esr5041102 Up to 625HP and 745

Up to 625HP and 745 LB-FT  LB-FT

E450 (MY2018+ | C238 | M276 | 3

CLS550 (C218 | PFL MY2012-14 | RWD | M278 | 4

355 HP @ 6

362 hp @ 5

Mercedes-AMG SL 63 (R232) & AMG GT 63 (C192) | RPM ECU-Upgrade | 4.0 L BiTurbo | up to 725 HP | 765 LB-FT | +100 HP +84 LB FT mercedes-benz-amg-gt--190---2015-2022--amg-gt-black-series-esr5041102 Up to 625HP and 745RENNtech Power Module ECU Upgrade for Mercedes AMG SL 63 (R 232) and AMG GT 63 (C192) 4. 0 L BiTurbo w EQ Boost M177 725 HP & 765 LB FT RENNtech Power Module (RPM) ECU tune increases horsepower and torque across the entire power band. By modifying ignition timing, throttle mapping, optimizing air to fuel ratios of the 4. 0 liter BiTurbo V8 engine (M177) found in the Mercedes AMG SL series of vehicles. The RPM is contained in a CNC machined 6061