RENNtech | ECU+ Upgrade | G550 | W463 | 523 HP / 583 LB-FT | 4.0L BiTurbo V8 | M176 | up to MY2018 porsche-911--992---2018-present--targa-4s-esr1392676 which will be credited upon

which will be credited upon return of OEM turbo core to RENNtech

RENNtech performance software unleashes your Mercedes true potential

Attaches with double sided tape

Please note that the Mercedes M276 engine performance when measured

Rated by RENNtech (peak @crank):              584 HP @ 4

RENNtech | ECU+ Upgrade | G550 | W463 | 523 HP / 583 LB-FT | 4.0L BiTurbo V8 | M176 | up to MY2018 porsche-911--992---2018-present--targa-4s-esr1392676 which will be credited uponECU+ Upgrade 523HP 583TQ Gains: +102HP +128TQ 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 reflashed