Straight pipe after stock H-pipe????

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There's nothing worse than aut
Founding Member
Aug 23, 2001
Westland, MI
i was running no muffles for 3 years, because i couldn't decide what setup to go with.
but yeah taken off muffles will cost you small amount of low end.

I don't think it really matters with cats on though. Having no mufflers and stock cats is more restrictive than having no cats and a performance muffler. I'm running an offroad Prochamber and 1 chamber flows, and I didn't feel any major loss.