RENNtech Intermediate ECU Upgrade - E 550 Coupe BiTurbo | C207 | 480HP/523 LB-FT | M278 Engine | MY2012-2013 porsche-cayenne--9ya---2018-present--cayenne-gts-coupe--my2020---esr2231938 15 sec 127 mph X290

15 sec 127 mph X290 - AMG GT63 R1 & R2 Package w/Launch Control 2

Up to 413HP and 422 LB-FT

CLASS S (W 221) 550 [2 Filters Required] (HP: 435 | Year: 11 > )

Up to 460 HP and 415 TQ @ crank

RENNtech Intermediate ECU Upgrade - E 550 Coupe BiTurbo | C207 | 480HP/523 LB-FT | M278 Engine | MY2012-2013 porsche-cayenne--9ya---2018-present--cayenne-gts-coupe--my2020---esr2231938 15 sec 127 mph X290RENNtech Intermediate ECU Upgrade for 207 E 550 BiTurbo. 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 components or for