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!
    545
    Discussions
    6,358
    Messages
    Latest: Heads, let's talk.... big_mike, Jul 27, 2017 at 5:26 PM
  2. LSX + Carb Swaps

    This section is for info on LSX or carburetor swaps into the OBS trucks.
    308
    Discussions
    3,874
    Messages
    Latest: Another LS thread flashmoto121, Jul 24, 2017 at 3:12 PM
  3. Exhaust

    Anything exhaust - from headers cats and pipes to tips.
    698
    Discussions
    8,771
    Messages
    Latest: What's the best overall dual exhaust? stepsidesquare, Jul 27, 2017 at 7:31 AM
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