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      03-12-2013, 10:11 PM   #21
Dave07997S
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Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: Playa del Rey, CA

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Quote:
Originally Posted by aus View Post
Any of the test pipes able to clamp the original cats back up for smog testing, and then swapping back to the test pipe?
Most seem to cut the stock pipe pretty close to the cat and I'm not sure there's enough tubing on the stock piece to clamp back on.
Aus, I have seen a few that were re-welded. If it is a good clean cut with a good welder I doubt anyone would be hard pressed to tell you had the xpipe cut.

I'm lucky found a used one for $150 awhile back and cut that one up while keeping the one that came on the car.

Dave
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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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