RENNtech Intermediate ECU Upgrade | X166 | GLS63 AMG | SUV | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2016+ maserati-mc20-esr2615562 RENNtech Pre-Preg Carbon Fiber Rear

RENNtech Pre-Preg Carbon Fiber Rear Diffuser Extensions for the C190 - AMG GT R

The maximum power number reached with the RENNtech ECU Upgrade for the E400 is 392 HP and 463 LB-FT

Attaches with double sided tape

Carrera GTS Cabriolet

523 hp @ 4

RENNtech Intermediate ECU Upgrade | X166 | GLS63 AMG | SUV | 638 HP / 695 LB-FT | M157 | 5.5L V8 BiTurbo | MY2016+ maserati-mc20-esr2615562 RENNtech Pre-Preg Carbon Fiber RearIntermediate ECU Upgrade Up to 638HP 695LB FT Gains: +33HP & +69LB 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