RENNtech ECU+ Upgrade | W166 | ML 550 | 540HP / 705LB-FT | 4.7L V8 BiTurbo | M278 mercedes-benz-e-class-wagon--213---2017-present--e-53-amg-esr5164676 520 LB-FT @ 2

520 LB-FT @ 2

Bentayga V8 (MY2018+)

Diverter Valve BMC High-Flow Air Filters

RPM Tuned: 637 HP | 625 LB FT

5" | 213 E63 AMG

RENNtech ECU+ Upgrade | W166 | ML 550 | 540HP / 705LB-FT | 4.7L V8 BiTurbo | M278 mercedes-benz-e-class-wagon--213---2017-present--e-53-amg-esr5164676 520 LB-FT @ 2ECU+ Upgrade 540HP 705LB FT Gains: +92HP +167LB FT RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be