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      02-13-2019, 08:46 PM   #8
jacoby521
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Drives: 2011.75 E92 M3
Join Date: Jun 2016
Location: Midwest / Michigan / Thumb Area

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Quote:
Originally Posted by wfdeacon88 View Post
with the 2-pipe mod, all else stock, I'm now thinking it's better to go X-pipe and not chop up my stock one... my only hesitation is that I was thinking having the stock secondaries would help minimize any smell/fumes. I've never owned a catless car, so my worry is purely around the "safety" of not having cats since I do use mine for lugging a toddler to school many mornings. Can anyone provide any input/info on what something like a quad Resonated x pipe means in terms of the fumes?
From what I've read it does nothing for the fumes, it just for sound to clean up some of the rasp. The only thing that will reduce the fumes and smell is adding in a HFC or leaving the stock secondary cats. I've read this only loses 5hp from cat-less.
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