RENNtech ECU+ Upgrade | W212 | E 550 | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2012-2013 mercedes-benz-a-class--a176---2014-2018--a45-amg-esr4958388 681 HP 736 LB-FT X290

681 HP   736 LB-FT   X290 - AMG GT63 ECU Upgrade

Bentley Flying Spur Speed

The RENNtech R3 performance upgrade features RENNtech’s Stage I turbochargers with lightweight forged billet turbo wheels with a larger impellers (inlet side) and an increase in the turbine trim (exhaust side)

911 - 997 3

630 sec 108

RENNtech ECU+ Upgrade | W212 | E 550 | 540HP / 705 LB-FT | 4.7L V8 BiTurbo | M278 | MY2012-2013 mercedes-benz-a-class--a176---2014-2018--a45-amg-esr4958388 681 HP 736 LB-FT X290ECU+ 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