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cylinder head

  1. Gen 2: 2006-2007 Gen 3 Cylinder head

    Performance and Tech
    Hello all, sorry if this has been asked and answered. I have a gen 2 and the problem I have right now is I believe the previous owner cross threaded cylinder 1's spark plug threads. So they got spark plug in fine and it ran good when I bought it but I recently put in new spark plugs and...
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