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 We have found the M157

We have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

The four-piece carbon fiber splitter is finished in a high gloss UV protectant clear coat

R1 Performance Package for 203 - C 55 AMG

3 LB-FT @4

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 We have found the M157RENNtech 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