RENNtech ECU Upgrade | X253 | GLC 43 AMG | SUV | 400 HP / 440 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2022 porsche-panamera--971---2016-2024--4-e-hybrid-esr9614197 along with machined "RENNtech" and

along with machined "RENNtech" and "Forged" branding integrated into the adjacent spoke windows

5 i (HP: 306 | Year: 09 >)

designed in-house by RENNtech and manufactured in the USA

Sport Mufflers and CF Airbox | Gains: +166HP

RENNtech ECU Upgrade | X253 | GLC 43 AMG | SUV | 400 HP / 440 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2022 porsche-panamera--971---2016-2024--4-e-hybrid-esr9614197 along with machined "RENNtech" andThe RENNtech ECU upgrade brings the GLC 43 AMG SUV up to 400 HP and 440 LB FT Gains: +25 HP and +42 LB FT. 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 choose directly to the ECU.