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  • OBX Headers

    I plan on installing a set of OBX headers this week, as well as a high-flow cat. Any helpful hints or words of wisdom from those who've done it? I was thinking of having my mechanic do it for me, because it would be easier having a hoist and heating torch on hand.
    Thanks.

  • #2
    Re: OBX Headers

    Not sure on the V6 but I did OBX LT's on my LS1 TA.

    Get some Felpro gaskets,I reused my old bolts but I don't think thats possible with the 3.8L.

    New Plugs and Wires for sure, some fabric heat shield sleeves are a good thing Summit has them.

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    • #3
      Re: OBX Headers

      Did you have to install them from underneath? Will I have enough room using jack stands? I'm a little rotund and need more room than the average person:o

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      • #4
        Re: OBX Headers

        Originally posted by Rhunadan View Post
        Did you have to install them from underneath? Will I have enough room using jack stands? I'm a little rotund and need more room than the average person:o
        I am 6'2" 255lbs ask Mike I am no slim Jim;)

        I did it on jack stands in my friends garage,my friend helped but I did about 75% of the work.

        He also has a stand up 40 gallon compressor that helped during disassembly of the old stuff like the stock Y and cats.

        I did the manifold bolts from the top.

        It will probasbly cost you 5-6 hundred to get a shop to do it.

        BTW I forgot to add you need new O2's and a new Hi Flow cat.

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        • #5
          Re: OBX Headers

          I used my old/original header bolts and o2 sensors. Also installed from underneath. Though I'm pretty skinny...there should be enough room under there. If I remember correctly, most of the drivers side header bolts, plus the spark plugs are easiest to remove from underneath. The front 1 or 2 drivers side and most passenger side header bolts were easiest from up top.
          aka FreedStyle
          Chaddrich Freed

          (1 of 443) 2002 SLP Firebird GT #107 (244rwhp/254rwtq naturally aspirated)
          2008 Silverado Crew Cab 5.3L 4x4

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          • #6
            Re: OBX Headers

            Cool,
            Thanks for the help.

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            • #7
              Re: OBX Headers

              Ultra copper RTV. On the header gaskets and the ball and flange. Dont overtighten the ball and flange, and use some anti-seize on the bolts.

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