RENNtech ECU Hand Held Tuner | HHT | W204 | C 63 AMG Black Series | 517HP/485LB-FT | 6.3L N/A | M156 |MY2012 porsche-panamera--970---2011-2015--panamera-turbo-esr4052223 SLC 43 AMG Coupe (R172

RENNtech ECU Hand Held Tuner | HHT | W204 | C 63 AMG Black Series | 517HP/485LB-FT | 6.3L N/A | M156 |MY2012 porsche-panamera--970---2011-2015--panamera-turbo-esr4052223 SLC 43 AMG Coupe (R172RENNtech ECU HHT (HandHeldTuner) for the 204 C 63 AMG Black Series. Up to 517HP and 485LB FT. Gains: +7HP & +28LB 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.

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