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 HP and TQ gains calculated

HP and TQ gains calculated by RENNtech are always based on peak stock results measured by RENNtech and upgraded peak results measured by RENNtech

The pre-preg material is cut and hand laid into a mold to the proper thickness and cured in an autoclave at strictly controlled

117 -  CLA

Carrera S Cabriolet

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

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 HP and TQ gains calculatedRENNtech 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