Quote:
Originally Posted by jayno20
I am doing headers with test pipes instead of high flow cats. I was considering doing their resonated x-pipe to possibly quiet it down if I feel it is too loud. From what I've seen it does seem to quiet it down... A lot...
With high flow cats, I don't think I'd do an x-pipe.
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why wouldn't you do the x-pipe with high flows?
Also what are test pipes?
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