RENNtech ECU+ Upgrade | W222 | S 63 AMG | Sedan | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014-2017 bmw-x5--e70----2010-2013--xdrive35d-3-0-l-i6-twin-turbo-diesel--m57n2--esr5029908 This system

This system

must be made of the best raw materials and must improve performance

The RENNtech Exhaust Valve Module is made in Germany

An optional camera housing extension (Part # Aero:88

Front high performance brake pads

RENNtech ECU+ Upgrade | W222 | S 63 AMG | Sedan | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo | MY2014-2017 bmw-x5--e70----2010-2013--xdrive35d-3-0-l-i6-twin-turbo-diesel--m57n2--esr5029908 This systemECU+ 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