RENNtech ECU Hand Held Tuner (HHT) for CL 65 | C215 | 670 HP / 840 LB-FT | MY2003-2006 mercedes-benz-glc-class--253---2016-present--glc-300-esr6983720 In combination with our performance

In combination with our performance Brake Pads

Note: Mercedes M279 engine performance when measured obtains higher numbers that rated from factory

and modifying boost mapping for turbo-chargers the Mercedes-AMG 53 M256 3

X290 | AMG GT63 4-Door Coupe

RPM Tuned: 484 HP | 485 LB FT

RENNtech ECU Hand Held Tuner (HHT) for CL 65 | C215 | 670 HP / 840 LB-FT | MY2003-2006 mercedes-benz-glc-class--253---2016-present--glc-300-esr6983720 In combination with our performanceRENNtech ECU HHT (HandHeldTuner) for the 215 CL 65 AMG. Up to 670HP and 840 LB FT LB FT. Gains: +66HP & +102 LB 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.