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      11-03-2012, 09:10 PM   #1
stilov
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Drives: 07 335i
Join Date: Mar 2009
Location: Allen, TX

Posts: 415
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X pipe and H pipe sound comparison

Does anyone know of a comparison between the two? Ideally on the same exhaust set up.

I like my exhaust, but wondered what removing the h pipe would do if I added an x pipe in its place.
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