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Old 03-09-2015, 05:15 PM   #3
Top Off
 
Drives: 2012 LS3 1SS/RS Vert
Join Date: Dec 2012
Location: Hamburg
Posts: 371
Yep, you can basically do what ever you want, as long as it looks like there are cats and no check engine lights. That is the broad version. I was failed before with another car due to the exhaust not being factory. The tech was a douche, but pulled shit out of the inspection book that allowed him to fail it. For what its worth. There are a ton of people on the board that have very extensive modifications and they all pass.
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