RENNtech ECU+ Upgrade | C292 | GLE63 AMG | Coupe | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo ferrari-599--2006-2011--esr8028475 The diffuser extensions are desinged

The diffuser extensions are desinged to achieve the best possible aerodynamic result in combination with the RENNtech Aro Package for the AMG GT R

CLS (C 218) 550 [2 Filters Required] (HP: 406 | Year: 10 > )

AMG GT63 Four Door Coupe (X290)

This product is designed to fit the R190 - AMG GT Black Series

RENNtech ECU+ Upgrade | C292 | GLE63 AMG | Coupe | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo ferrari-599--2006-2011--esr8028475 The diffuser extensions are desingedECU+ Upgrade Up to 669HP 734LB FT Gains: +64HP & +108LB 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