RENNtech ECU+ Upgrade | S213 | E450 BiTurbo Wagon | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 | MY2019-2020 smart-esr7070754 Engineered for the M178 BiTurbo

Engineered for the M178 BiTurbo LS2 V8 powerplant found in the AMG GT Black Series

R3 Performance Package includes:

CLASS G (W 463) 500 V8 SW LONG [2 Filters Required] (HP: 388 | Year: 07 > )

7 V8 (HP: | Year: 84 > 00)

CLASS S (W 221) 351 V6 4-Matic Blue Efficiency (HP: 306 | Year: 11 > )

RENNtech ECU+ Upgrade | S213 | E450 BiTurbo Wagon | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 | MY2019-2020 smart-esr7070754 Engineered for the M178 BiTurboECU+ Upgrade Up to 392 HP 463 LB FT Gains: +53 HP & +78 LB FT RENNtech M276 Biturbo ECU Upgrades are TV approved! RENNtech tuning products are certified to meet CARB standards in all 50 States. 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