RENNtech ECU Upgrade | GL 550 | X166 | 480HP / 605LB-FT | 4.7L BiTurbo | M278 Engine audi-s3--8p---2006-2012--2-0l-tfsi-esr5566206 The RENNtech performance turbo upgrade

The RENNtech performance turbo upgrade is truly the ultimate upgrade for your E63 (S) AMG Sedan and Wagon

The impeller and turbine housings are precision CNC machined and flow tested in-house to fit the larger internal cartridge which is balanced as a complete assembly prior to installation

Upgraded Throttle Body and Stainless Steel Headers

R3 Performance Package for Mercedes-AMG G 63: ECU Upgrade (HHT)

RENNtech Carbon Fiber FLat Top Air Box

RENNtech ECU Upgrade | GL 550 | X166 | 480HP / 605LB-FT | 4.7L BiTurbo | M278 Engine audi-s3--8p---2006-2012--2-0l-tfsi-esr5566206 The RENNtech performance turbo upgradeECU 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