RENNtech ECU+ Upgrade | C190 | AMG GT S | 601HP/582LB-FT | 4.0L V8 BiTurbo | M178 | MY2018+ mercedes-benz-a-class--177---2019-present--a-35-amg-esr2974641 The maximum power number reached

The maximum power number reached with the RENNtech ECU Upgrade for the E450 is 392 HP and 463 LB-FT

Our intermediate ECU tune increases performance from 556 HP and 550 lb/ft torque up to 624 HP and 680 lb/ft at the crank

Please note that the Mercedes M176 engine performance when measured

The unit allows the user to have full control over all four corners of the vehicle’s suspension and adjust in 1mm increments through RENNtech Mobile app and Blue Tooth Connection

this design honors RENNtech's expertise in high-performance engine tuning

RENNtech ECU+ Upgrade | C190 | AMG GT S | 601HP/582LB-FT | 4.0L V8 BiTurbo | M178 | MY2018+ mercedes-benz-a-class--177---2019-present--a-35-amg-esr2974641 The maximum power number reachedECU+ Upgrade Up to 601HP 582LB FT Gains: +65HP & +87LB FT 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 directly into the OBD2 port and delivers the file you choose