Quote:
Originally Posted by guudasitgets
thats right, and it most likely will hurt your preformance, ask any Harley engine builder about all those loud staggered pipes, They sound cool but time and time again they've prove this on a dyno the horsepower went down.
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Quote:
Originally Posted by dichotomous
with the stock headers, midpipe and cat, your oversized exhaust will ONLY sound bad, it wont do a thing to performance at all.
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If that's true, how are cat-back manufacturers and tuners alike showing off dyno runs where a cat-back exhaust system outflows stock and nets 5-15 HP gains?
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