RENNtech Intermediate ECU Upgrade - E 550 Coupe BiTurbo | C207 | 480HP/523 LB-FT | M278 Engine | MY2012-2013 mercedes-benz-s-class-coupe--217---2015-2017--s-65-amg-esr5480974 250rpm Note: Mercedes M177 engine

250rpm Note: Mercedes M177 engine performance when measured on the dyno obtains higher power numbers than rated from factory

Stage II Turbo Upgrade: RENNtech lightweight forged billet turbo wheel features a larger-than stock impeller (inlet side) and an increase in the turbine trim (exhaust side)

Our intermediate ECU tune increases performance from 429 HP and 516 lb/ft torque up to 480 HP and 605 lb/ft at the crank

RENNtech's SLS AMG adjustable suspension kit offers not only overall improved aesthetics and an aggressive vehicle stance

732 wtq @ 5

RENNtech Intermediate ECU Upgrade - E 550 Coupe BiTurbo | C207 | 480HP/523 LB-FT | M278 Engine | MY2012-2013 mercedes-benz-s-class-coupe--217---2015-2017--s-65-amg-esr5480974 250rpm Note: Mercedes M177 engineRENNtech 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