RENNtech Intermediate ECU Upgrade | W166 | ML63 AMG | SUV | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2013-15 maserati-ghibili--157---2013-2023--esr9661198 Gains: +53HP & +67TQ

Gains: +53HP & +67TQ

RENNtech proudly introduces this addition to an already impressive and highly successful aerodynamic upgrade program for the Mercedes-Benz SLS AMG

Up to 380HP and 395 LB-FT

Stock: 542 HP | 502 LB-FT

RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz C-Class Coupe

RENNtech Intermediate ECU Upgrade | W166 | ML63 AMG | SUV | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2013-15 maserati-ghibili--157---2013-2023--esr9661198 Gains: +53HP & +67TQIntermediate ECU Upgrade Up to 638HP 695LB FT Gains: +64HP & +72LB FT RENNtech M157 Biturbo ECU+ Upgrades are TV approved! Our proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4 MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability. Our intermediate level ECU upgrade offers huge gains in performance across the entire RPM range without sacrificing around town