RENNtech ECU Upgrade | GL 450 AMG | X166 | 402HP/454LB-FT | 3.0L BiTurbo V6 | M276 bentley-flying-spur-speed--2022-2024--6-0l-w12-tsi-esr8340154 0L OM642 V6 Diesel Engine

0L OM642 V6 Diesel Engine

The  RENNtech ECU Plus Upgrade brings the GLC 43 AMG SUV up to 416 HP and 460 LB-FT | Gains: +41 HP and +62 LB-FT

creating a more balanced and stabilized driving feel for the car

Software updates do not interfere with the functionality of the EVM

Carrera S Cabriolet

RENNtech ECU Upgrade | GL 450 AMG | X166 | 402HP/454LB-FT | 3.0L BiTurbo V6 | M276 bentley-flying-spur-speed--2022-2024--6-0l-w12-tsi-esr8340154 0L OM642 V6 Diesel EngineRENNtech ECU Upgrade for 166 GL 450 BiTurbo 4 MATIC. Up to 402HP and 454LB FT. Gains: +40HP & +70LB FT RENNtech M276 Biturbo ECU Upgrades are TV approved! 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