RENNtech ECU+ Upgrade | C217 | S 63 AMG | Coupe | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2015-2017 ferrari-ff--2011-2016--esr7021482 582 LB-FT @ 5

582 LB-FT @ 5

the new setting is uploaded and the car will adjust to the new height

SL 63 AMG (R231 | PFL MY2012-14 | RWD | M157 | 5

Rated by RENNtech:              460 HP @ 6

RENNtech | C/R 190 | AMG GT (Facelift) | Carbon Fiber Front Splitter

RENNtech ECU+ Upgrade | C217 | S 63 AMG | Coupe | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2015-2017 ferrari-ff--2011-2016--esr7021482 582 LB-FT @ 5ECU+ Upgrade Up to 669HP 734LB FT Gains: +65HP & +55LB FT 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