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      10-25-2012, 02:33 PM   #25
Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: Playa del Rey, CA

Posts: 2,502
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Originally Posted by aus View Post
Can you change out the cats with the test pipes without removing the X-pipe?
I'm just thinking about when we have to smog the car?
Do you mean you could just swap them out without removing the Xpipe? Probably, just have to loosen it upand get it off the rubber mounts. Also it would depend on the clamps being used.

2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk
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