RENNtech ECU Upgrade | C216 | CL 550 | 500HP / 625 LB-FT | 4.7L V8 BiTurbo | M278 | MY2011-2014 mercedes-benz-c-class--205-sedan---2015-2022--c-350e-plug-in-hybrid-esr8664468 The RENNtech upgraded M273now produces

The RENNtech upgraded M273now produces up to 402 HP and 405 LB-FT at crank

The RENNtech lock-up clutch upgrade uses a multi-element clutch upgrade with additional layer of friction material between the clutch plate

RENNtech Carbon Fiber Air Box for M113 V8 Kompressor Engines

Manufactured from Inconel

Aston Martin - DB 11 V8

RENNtech ECU Upgrade | C216 | CL 550 | 500HP / 625 LB-FT | 4.7L V8 BiTurbo | M278 | MY2011-2014 mercedes-benz-c-class--205-sedan---2015-2022--c-350e-plug-in-hybrid-esr8664468 The RENNtech upgraded M273now producesECU Upgrade 500HP 625LB FT Gains: +52HP +87LB 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