RENNtech ECU+ Upgrade | C238 | E450 BiTurbo | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 | MY2019-2020 mercedes-benz-s-class-coupe--217---2018-present--s-550-esr7343212 RENNtech Bluetooth HSM | Digital

RENNtech Bluetooth HSM | Digital Suspension Lowering Module for vehicles equipped with Airmatic / Magic Body Control Suspension

778 LB-FT @ 4

BMC air filters are designed and produced to ensure a higher air flow than original paper filters

Please note that the Mercedes M177 engine performance when measured

RENNtech ECU+ Upgrade | C238 | E450 BiTurbo | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 | MY2019-2020 mercedes-benz-s-class-coupe--217---2018-present--s-550-esr7343212 RENNtech Bluetooth HSM | DigitalECU+ Upgrade Up to 392 HP 463 LB FT Gains: +53 HP & +78 LB FT 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 you choose directly to the ECU.