RENNtech ECU Hand Held Tuner (HHT) for CL 600 | C215 | 625 HP / 745 LB-FT | +132HP / +155LB-FT | MY2003-2006 mercedes-benz-gle-class--166---2016-2020--gle-63-amg-esr4679580 Rated by RENNtech (peak @wheel):

Rated by RENNtech (peak @wheel):              621 whp @ 5

the RENNtech AMG GT63 splitter features several unique design elements

Gains: +63HP & +79LB-FT

The pre-preg material is cut and hand laid into a mold to the proper thickness and cured in an autoclave at strictly controlled

The maximum power number reached with the RENNtech ECU Upgrade for the S63 AMG S 4MATIC+ is 740 HP and 806 LB-FT

RENNtech ECU Hand Held Tuner (HHT) for CL 600 | C215 | 625 HP / 745 LB-FT | +132HP / +155LB-FT | MY2003-2006 mercedes-benz-gle-class--166---2016-2020--gle-63-amg-esr4679580 Rated by RENNtech (peak @wheel):RENNtech ECU HHT (HandHeldTuner) for the 215 CL 600. Up to 625HP and 745 LB FT LB FT. Gains: +132HP & +155 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.