RENNtech ECU Upgrade | C207 | E 550 Coupé 2014+ | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017 bentley-continental-gt-speed--2021-2024--6-0l-w12-tsi-esr9500514 CLS 53 AMG

CLS 53 AMG

Easy Grip Base Taller base ensures a better grip

5" in the front and 1

RENNtech V3 DLM Module Specifications:

Stock with Eventuri (Runs 13 and 14) : 13 - 558

RENNtech ECU Upgrade | C207 | E 550 Coupé 2014+ | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017 bentley-continental-gt-speed--2021-2024--6-0l-w12-tsi-esr9500514 CLS 53 AMGRENNtech ECU Upgrade for 207 E 550 BiTurbo 2014+ FaceLift. Up to 540HP and 705 LB 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 takes only a few