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!
    492
    Discussions
    5,850
    Messages
    Latest: A machinist , a turbo and his L31 GMC Mrich0908, Jan 22, 2017 at 2:13 PM
  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    284
    Discussions
    3,586
    Messages
  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    665
    Discussions
    8,476
    Messages
    Latest: engine running rough tannerezell077, Jan 21, 2017 at 10:47 PM
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