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      03-13-2012, 04:07 AM   #6
FVM3
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Drives: e92 m3, f30 328i
Join Date: Sep 2010
Location: Los Angeles

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Quote:
Originally Posted by saeedg48 View Post
i had a catless xpipe. i wouldn't recommend it. they're no power gains. i'd consider a primary catdelete. it sounds much better. nice growl, and with my stock mufflers i didn't get any drone, despite what some claim on the forums. so do a primary catdelete (turner test pipe ~$300). once you CEL turns on ignore it, tune it, or purchase the akro cel delete.

more power, more noise.
x pipe should gain some hp but not much
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