RENNtech ECU Upgrade | GL 550 | X166 | 480HP / 605LB-FT | 4.7L BiTurbo | M278 Engine mercedes-benz-gle-class--166---2016-2020--gle-63-amg-esr4679580 For extra convenience

For extra convenience

Please Note: Vehicles without factory fixed rear wing will require MB OEM wing base and Spoiler Deactivation module

X292 - GLE Coupe GLE43 AMG

our sound pipe produces noticable gains and improved power in the mid-to-high rpm range

Current Consumption: 30mA (60mA while plugged in to PC/Tablet)

RENNtech ECU Upgrade | GL 550 | X166 | 480HP / 605LB-FT | 4.7L BiTurbo | M278 Engine mercedes-benz-gle-class--166---2016-2020--gle-63-amg-esr4679580 For extra convenienceECU 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