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higher RPM’s and a lighter rotating mass
414 LB-FT @ 3
CLASS C COUPE' (C 204) 350 V6 Blue Efficiency (HP: 306 | Year: 11 > )
53 AMG EQ Boost (MY2018+ | M256 | 3
RENNtech ECU Hand Held Tuner | HHT | S 63 AMG | W221 | 534HP/485 LB-FT | 6.3L N/A | M156 | MY2008-2010 aston-martin-dbx707-esr8045635 higher RPM’s and a lighterRENNtech ECU HHT (HandHeldTuner) for the 221 S 63 AMG. Up to 534HP and 485LB FT LB FT. Gains: +16HP & +20 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.
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