RENNtech ECU+ Upgrade | W463 | G63 AMG | 731 HP/786 LB-FT | 4.0L V8 BiTurbo | M177 | MY2019-2024 mercedes-benz-c-class--217---2014-2020--s63-amg-esr5011825 and tested in house at

and tested in house at the RENNtech headquarters in Stuart

GLS 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Modified Performance:

com or call our sales-team under 561

The Exhaust Valve Module allows you to fully open the exhaust valves of the AMG Sport Exhaust by pressing Button 1 on the remote control

GLE 53 AMG (V167 -chassis)

RENNtech ECU+ Upgrade | W463 | G63 AMG | 731 HP/786 LB-FT | 4.0L V8 BiTurbo | M177 | MY2019-2024 mercedes-benz-c-class--217---2014-2020--s63-amg-esr5011825 and tested in house atECU+ Upgrade Up to 731 HP 786 LB FT Gains: +88 HP & +65 LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you