RENNtech ECU Upgrade | W221 | S 550 | 500HP / 625 LB-FT | 4.7L V8 BiTurbo | M278 | MY2011-2013 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 523 LB-FT @ 5200 RPM

523 LB-FT @ 5200 RPM

0" Weight:   Construction: 1-piece Cast Tire Size: 275/25-20

L or Tall Bracket Profile SKU: 88

CL (C 216) 600 V12 [2 Filters Required] (HP: 517 | Year: 06 > )

GLA 45 AMG (H247 -chassis)

RENNtech ECU Upgrade | W221 | S 550 | 500HP / 625 LB-FT | 4.7L V8 BiTurbo | M278 | MY2011-2013 mercedes-benz-c-class--204-sedan---2008-2014--c-63--amg-black-series-esr3194090 523 LB-FT @ 5200 RPMECU 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