RENNtech ECU Upgrade GL 450 (X166- 501 HP / 576 LB-FT for M278 Biturbo) r3-package The maximum power number reached

The maximum power number reached with the RENNtech ECU Upgrade for the AMG GT-S is 601 HP and 582 LB-FT

Up to 775HP and 950LB-FT

RENNtech ECU HHT (HandHeldTuner) for the 211 - E55 AMG Kompressor

One big advantage is that the control unit recognizes the

CLS 63 AMG (C218 | PFL MY2012-13 | RWD | M157 | 5

RENNtech ECU Upgrade GL 450 (X166- 501 HP / 576 LB-FT for M278 Biturbo) r3-package The maximum power number reachedRENNtech ECU Upgrade for 166 GL 450 BiTurbo. Up to 501HP and 576LB FT. Gains: +139HP & +170LB 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