RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 mercedes-benz-ml-class--164---2006-2011--ml-320-cdi-esr8255656 669 LB-FT @2

669 LB-FT @2

E450 BiTurbo Coupe | MY2017+

RENNtech AMG GT R side skirts feature a flawless fitment to the vehicles OEM rocker panels

The ECU upgrade for the Mercedes M278 Biturbo engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability

443 LB-FT @2

RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 mercedes-benz-ml-class--164---2006-2011--ml-320-cdi-esr8255656 669 LB-FT @2RENNtech ECU Upgrade for 218 CLS 400 BiTurbo 4 MATIC. Up to 392HP and 432TQ. Gains: +63HP & +78TQ RENNtech M276 Biturbo ECU Upgrades are TV approved! 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