RENNtech ECU Upgrade | W166 | ML 550 | 480HP / 605LB-FT | 4.7L V8 BiTurbo | M278 mercedes-benz-ml-class--164---2006-2011--ml-320-cdi-esr8255656 With the proprietary RENNtech ECU

With the proprietary RENNtech ECU Plus Upgrade the W166 - GLE AMG SUV gains up to +41 HP and +62 LB-FT

Diffuser and Adjustable DTM Wing

After countless hours of design development

compared to the OEM pumps 3

RENNtech ECU Upgrade | W166 | ML 550 | 480HP / 605LB-FT | 4.7L V8 BiTurbo | M278 mercedes-benz-ml-class--164---2006-2011--ml-320-cdi-esr8255656 With the proprietary RENNtech ECUECU Upgrade 480HP 605LB FT Gains: +32HP +67LB 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