Has anyone removed aftermarket X-Pipe & gone back to stock?
View Single Post
12-21-2011, 10:48 AM
BimmerPost Supporting Vendor
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Originally Posted by
Just use the factory Xpipe and gut the secondary cat. 200 bucks at an exhaust shop is what most people seem to report for that.
That's won't necessarily pass the smog test.
Check us out on Facebook at BPMsportLabs
View Public Profile
Send a private message to THE TECH
Find More Posts by THE TECH