Thread: Test pipes or no?
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      12-07-2012, 09:50 AM   #22
ERinEC
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Drives: '11 AW E92 M3
Join Date: May 2012
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Quote:
Originally Posted by anacondatp View Post
for guys with test pipes, what do you do when it comes time for smog test?
I'm interested to know this as well. Do you just have the cats welded back on prior to the test?
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