stock headers + high flow cats vs fast int. headers=7 hp gain ???
I can't read all 1,831 posts, so if this was pointed out, then I'm sorry for asking. Was there a test done with stock headers + test pipes vs Fast Intentions headers? I think test pipes might be 6 to 11 hp better than high flow cats. Test pipes + intallation is much cheaper than headers + intallation. That would change everything. Unless of course I'm missing something.
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