RENNtech ECU Hand Held Tuner (HHT) for CLK 500 C209 | 320 HP / 355 LB-FT | MY2003-2006 porsche-panamera--970---2011-2015--panamera-turbo-s-esr9889523 Up to 672 HP and

Up to 672 HP and 592 LB-FT @ crank

W213 - E63 AMG Sedan

Includes ECU

302 HP @ 5600 RPM

5L V12 Twin Turbo) Stock Performance (at crank):

RENNtech ECU Hand Held Tuner (HHT) for CLK 500 C209 | 320 HP / 355 LB-FT | MY2003-2006 porsche-panamera--970---2011-2015--panamera-turbo-s-esr9889523 Up to 672 HP andRENNtech ECU HHT (HandHeldTuner) for the 209 CLK 500. Up to 320HP and 339 LB FT LB FT. Gains: +18HP & +16LB 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.