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07 classic chevy duramax

  1. 2020 EFI Deleted tuning

    EFI Live
    I have been looking around trying to find out who still offers tunes for deleted trucks with little to no progress. I have a 07 Classic 3500 that i bought with TB exhaust on and it already had EGR deleted. it has a box tuner on it and i want to get it off and get good tunes installed that are...
  2. Backspacing

    Wheels & Tires
    I have 315/75R16s on my stock suspension 07 Classic Duramax. The tires are equilivent to a 35'' tire but i want to go to a 20in wheel with 35's. I am looking for the backspacing on the wheels that will keep the tires from scrubbing. The bfg km2's im running now do not scrub at all and i would...