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ported stock manifold

  1. Porting stock manifold or FAST 92

    C6 Corvette General Discussion
    So I have been shopping around for both FAST 92's and having the stock manifolds ported in both Amy's and my C6's. So here is the question - which is better? Porting stock manifold or FAST 92? The FAST is much more in cost, so do you get any more performance than you would with stock manifold...
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