RENNtech HHT ECU Upgrade for GL 320 CDI (X164- 253 HP / 464 LB-FT) bentley-continental-gt-supersports--2017-2018--6-0l-w12-ea398-twin-turbo-esr9658979 The maximum power number reached

The maximum power number reached with the RENNtech ECU+ Upgrade for the W463 - G 550 4x4² is up to 523 HP and 583 LB-FT

bolt on component which improves vehicle aesthetics and increases front end down force

62 AWHP / 582

544 LB-FT Mercedes M157 engine performance when measured

RENNtech HHT ECU Upgrade for GL 320 CDI (X164- 253 HP / 464 LB-FT) bentley-continental-gt-supersports--2017-2018--6-0l-w12-ea398-twin-turbo-esr9658979 The maximum power number reachedRENNtech HHT ECU Performance Upgrade for 166 GL 320 CDI. up to 253HP and 464LB FT. Gains: +23HP & 75LB 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. Programming