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!
    716
    Discussions
    8,445
    Messages
    Latest: STILL chasing hard start.... ztarleton, Aug 18, 2019 at 11:03 AM
  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    386
    Discussions
    5,014
    Messages
    Latest: Gen V L83 swap in OBS Tahoe SteveO99, Aug 19, 2019 at 1:32 PM
  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    796
    Discussions
    9,547
    Messages
    Latest: Muffler for 454 b454rat, Aug 19, 2019 at 8:22 PM
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