RENNtech ECU Hand Held Tuner (HHT) for S 600 | W220 | 625 HP / 745 LB-FT | MY2003-2006 porsche-911--992---2018-present--carrera---cabriolet-esr2933448 CLASS C (W 204) 350

CLASS C (W 204) 350 V6 [2 Filters Required] (HP: 272 | Year: 07 > 11)

We have found the M176 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz

With the proprietary RENNtech ECU Tuning the W213 - E63 AMG S 4MATIC+ gains up to +82 HP and +84LB-FT

GT 63 S AMG S 4-Door Coupe (MY2019+ | X290 | M177 | 4

Up to 417HP and 446TQ

RENNtech ECU Hand Held Tuner (HHT) for S 600 | W220 | 625 HP / 745 LB-FT | MY2003-2006 porsche-911--992---2018-present--carrera---cabriolet-esr2933448 CLASS C (W 204) 350RENNtech ECU HHT (HandHeldTuner) for the 220 S 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.