RENNtech ECU+ Upgrade | C190 | AMG GT R | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 mercedes-benz-s-class--221---2007-2013--s-63-amg-esr7422703 646 LB-FT @ 3

646 LB-FT @ 3

- Audi RSQ8 (4M) 2019+

These RENNtech rear diffuser extensions create an all new aggressive and functional aesthetic for the rear of the C190 - AMG GT R

Note: Mercedes M276 engine performance when measured obtains higher numbers that rated from factory

RENNtech ECU HHT (HandHeldTuner) for the 219 - CLS 500

RENNtech ECU+ Upgrade | C190 | AMG GT R | 659HP/614LB-FT | 4.0L V8 BiTurbo | M178 mercedes-benz-s-class--221---2007-2013--s-63-amg-esr7422703 646 LB-FT @ 3ECU+ Upgrade Up to 659HP 614LB FT Gains: +50HP & +73LB 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