Mercedes-AMG SL 55 & GT 55 | RPM ECU-Upgrade | C192 & R232 | 4.0 L BiTurbo | 579 HP | 664 LB-FT mclaren-600-lt-esr8962987 The RENNtech tuning software for

The RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band

Most of the industry utilizes a lower cost

S 63 AMG (W221 | Sedan | MY2011-13 | RWD | M157 | 5

0L Engine) Stock Performance:

This product is designed to fit the R190 - AMG GT Black Series

Mercedes-AMG SL 55 & GT 55 | RPM ECU-Upgrade | C192 & R232 | 4.0 L BiTurbo | 579 HP | 664 LB-FT mclaren-600-lt-esr8962987 The RENNtech tuning software forRENNtech Power Module ECU Upgrade for Mercedes AMG SL 55 & GT 55 C192 & R232 4. 0 L BiTurbo w EQ Boost M177 579 HP & 664LB 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 aluminum case