RENNtech ECU Upgrade | X253 | GLC 43 AMG | SUV | 400 HP / 440 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2022 mercedes-benz-gt-4-door-coupe--290---2019-present--gt-43-amg-esr1573433 The maximum power number reached

The maximum power number reached with the RENNtech ECU Upgrade for the E450 is 392 HP and 463 LB-FT

657 HP @ 6800 RPM

The RENNtech Hand-Held Suspension Module (HSM) is designed to work with the Mercedes Airmatic and Magic Body Control Suspensions

Our performance brake package 3G for G-wagons (W 463) features:

0L Biturbo):

RENNtech ECU Upgrade | X253 | GLC 43 AMG | SUV | 400 HP / 440 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2022 mercedes-benz-gt-4-door-coupe--290---2019-present--gt-43-amg-esr1573433 The maximum power number reachedThe 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.