Mercedes-Benz 300-Series | C Class | E Class | GLC Class | RENNtech Power Module | 286 HP/309 LB-FT | M274 | 2.0 L Turbo mercedes-benz-e-class-wagon--213---2017-present--e-300-esr9444263 Rated by Mercedes-Benz: 456 HP

Rated by Mercedes-Benz:      456 HP @ 6

Our proprietary ECU upgrade for the Mercedes M137 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability

CL 55 AMG KOMPRESSOR (W215) Stock Performance:

AMG M177 -engines (2020+) : C 63 | GLC 63 | E 63 | GT 63 | S 63 | G 63  |

C205 - C63 S AMG Coupe

Mercedes-Benz 300-Series | C Class | E Class | GLC Class | RENNtech Power Module | 286 HP/309 LB-FT | M274 | 2.0 L Turbo mercedes-benz-e-class-wagon--213---2017-present--e-300-esr9444263 Rated by Mercedes-Benz: 456 HPECU+ Upgrade Up to 286 HP 309 LB FT Gains: +41 HP & +37 LB FT C300 E300 SLC300 GLC300 The RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying boost mapping and keeping optimized air to fuel ratios, the entire power and torque curve is shifted upward delivering +41 HP +37 LB FT in the Mercedes Benz M274 DE20 LA engine, based on Dyno measured power figures. The RENNtech Power