RENNtech ECU+ Upgrade | C190 | AMG GT C | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 | MY2018-2021 porsche-cayenne--2017-present--po536--340ps--esr7220361 Finished in a multi-layer UV

Finished in a multi-layer UV protective clear coating system

460 LB-FT @ 3

Up to 460 HP and 415 TQ @ crank

A CARB Executive Order was granted to the RENNtech HHT based on emission test results in the modified configuration

RENNtech ECU HHT (HandHeldTuner) for the 220 - S 55 AMG

RENNtech ECU+ Upgrade | C190 | AMG GT C | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 | MY2018-2021 porsche-cayenne--2017-present--po536--340ps--esr7220361 Finished in a multi-layer UVECU+ Upgrade Up to 659HP 614LB FT Gains: +84HP & +93LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States 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