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      05-11-2012, 03:54 AM   #65
iczz
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Drives: E90 / F10 / F80
Join Date: Jan 2006
Location: SF Bay Area

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Quote:
Originally Posted by Gjm127 View Post
thx for the link... gave some idea

What if I replace the secondary cats by an X-pipe?
What would that do?
have no experience with X-pipe.

Just did a quick search: http://www.e90post.com/forums/showpo...3&postcount=23

seems like you will not want to replace with X pipe