Engine Performance + Maintenance

If it's under the hood, its in here.

  1. 96+ Vortec Performance + Computer Swaps

    If you want to do the 0411 PCM swap or have a 1996+ Vortec motor this is your forum!
    655
    Discussions
    7,650
    Messages
    Latest: Black box tuned and spare 411 value BNielsen, Oct 21, 2018 at 3:15 PM
  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    344
    Discussions
    4,657
    Messages
    Latest: Turbo LS Swap with A/C GarrettGmc, Oct 22, 2018 at 10:45 PM
  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    758
    Discussions
    9,258
    Messages
    Latest: Headers for a 1992 3500HD 454 Sparkysikes, Oct 23, 2018 at 9:28 AM
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