RENNtech ECU+ Upgrade | W212 | E 550 | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2012-2013 mercedes-benz-s-class--222---2014-2017--s600-maybach-esr8260065 117 - CLA 45 AMG

117 -  CLA 45 AMG

CLASS S (W 220) 63 AMG [2 Filters Required] (HP: 444 | Year: 01 > 02)

RENNtech V3 Digital Suspension Lowering Module Software Download (ALL):

RENNtech ECU Upgrade for 219 - CLS 550

The central area features a low-drag

RENNtech ECU+ Upgrade | W212 | E 550 | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2012-2013 mercedes-benz-s-class--222---2014-2017--s600-maybach-esr8260065 117 - CLA 45 AMGECU+ Upgrade 540HP 705LB FT +105HP +262LB 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 reflashed at