RENNtech ECU Upgrade | W222 | S 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017 mercedes-benz-s-class-coupe--217---2015-2017--s63-amg-biturbo-esr3084673 SL (R230) 350 V6 [2

RENNtech ECU Upgrade | W222 | S 550 | 500HP / 625LB-FT | 4.7L V8 BiTurbo | M278 | MY2014-2017 mercedes-benz-s-class-coupe--217---2015-2017--s63-amg-biturbo-esr3084673 SL (R230) 350 V6 [2ECU 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

SKU: 91742538857 · From www.ohotnichi-sezoni.com