RENNtech ECU Upgrade | S 600 | W220 | 417HP/446LB-FT | 5.8L V12 | M137 | MY2000-2002 carbon-fiber and concavity for specific vehicle

and concavity for specific vehicle applications

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- Manufactured by RENNtech

0L V6 BiTurbo) Stock Performance:

Modified Performance:

RENNtech ECU Upgrade | S 600 | W220 | 417HP/446LB-FT | 5.8L V12 | M137 | MY2000-2002 carbon-fiber and concavity for specific vehicleRENNtech ECU Upgrade for the 220 S 600. Up to 417HP and 446TQ. Gains: +55HP & +56TQ 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. Programming takes only a few