RENNtech ECU+ Upgrade | W221 | S 550 | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2011-2013 mercedes-benz-gl-class--166---2013-2016--gl-450-biturbo--2015--esr1226392 CLASS E SW (S 210)

CLASS E SW (S 210) 200 Kompressor EVO (HP: 163 | Year: 00 > 03)

0L V8 BiTurbo | AMG GT Black Series

The software allows the user to adjust the ride-height at each corner in 1mm increments independently

Gains: +48HP & +36TQ

RENNtech ECU+ Upgrade | W221 | S 550 | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2011-2013 mercedes-benz-gl-class--166---2013-2016--gl-450-biturbo--2015--esr1226392 CLASS E SW (S 210)ECU+ Upgrade 540HP 705LB FT Gains: +92HP +167LB 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