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      11-05-2012, 01:43 PM   #4
AK 335i
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Drives: black 335i E90
Join Date: Sep 2012
Location: boynton beach

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Originally Posted by stilov View Post
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.
I have catless downpipes and removed 2nd cats and h pipe and mufflers and replaced with a high flow muffler(2in 2out) with A built in x pipe
here's the sound

- Proven Power Tampa Built 6466 ST N54 6AT WR 711whp 637wtq -
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