RENNtech ECU Upgrade | C217 | S 550 Coupé | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 | MY2015-2017 bentley-flying-spur-speed--2022-2024--6-0l-w12-tsi-esr8340154 homologated:

homologated:

R2 Performance Package for 215 - CL 55 AMG Kompressor

CLS 55 AMG Kompressor

2 Size: 21" x 12

L or Tall Bracket Profile SKU: 88

RENNtech ECU Upgrade | C217 | S 550 Coupé | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 | MY2015-2017 bentley-flying-spur-speed--2022-2024--6-0l-w12-tsi-esr8340154 homologated:ECU Upgrade 500HP 625LB FT Gains: +26HP +59LB 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 areas and countries with extreme altitudes, temperatures or