RENNtech ECU+ Upgrade | C190 | AMG GT C | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 | MY2018-2021 mercedes-benz-cla-class--118---2020-present--cla-250-esr6895269 5L V8 BiTurbo) Stock Performance

5L V8 BiTurbo) Stock Performance (at crank):

The state of the art internals also control unwanted pointer movement or needle float found in other gauges on the market even under the most extreme motorsport conditions

Our intermediate ECU tune increases performance from 550 HP and 544 lb/ft torque up to 638 HP and 695 lb/ft at the crank

in order to improve your track setup/alignment

Rated by Mercedes-Benz:      577 HP @ 5

RENNtech ECU+ Upgrade | C190 | AMG GT C | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 | MY2018-2021 mercedes-benz-cla-class--118---2020-present--cla-250-esr6895269 5L V8 BiTurbo) Stock PerformanceECU+ 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