RENNtech Intermediate ECU Upgrade for E 550 BiTurbo | C207 | 480HP/523 LB-FT | M278 Engine | MY2014-2017 bmw-m6-grand-coup---f06---2012-2019--4-4-liter-v8-twin-turbocharged-esr3210200 AMG Customer Logo on Right

AMG Customer Logo on Right Sleeve

The maximum power number reached with the RENNtech ECU Upgrade for the G63 AMG is 731 HP and 786 LB-FT

and an X-pipe that incorporates high-flow 100 cpsi sports catalytic convertors and resonators

2 (HP: 250 | Year: 03 > 07)

RENNtech Intermediate ECU Upgrade for E 550 BiTurbo | C207 | 480HP/523 LB-FT | M278 Engine | MY2014-2017 bmw-m6-grand-coup---f06---2012-2019--4-4-liter-v8-twin-turbocharged-esr3210200 AMG Customer Logo on RightRENNtech Intermediate ECU Upgrade for 207 E 550 BiTurbo 2014 2017 FaceLift. Up to 480HP and 523 LB FT. Gains: +78HP & +80 LB FT Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced peak HP and torque from our standard tune. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline