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2008 chevy
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58 Posts
Do you not have your cats in your exhaust system. If you have them why would you fail emissions?

BMNSS
 

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2003 gmc envoy_slt
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7,190 Posts
The only problem would be if there is a maximum decibel test.:m2:
 

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2005 chevy trailblazer_ls
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416 Posts
As long as you left your cats on, you should be fine. I've been through NJ inspections several times with cat-back aftermarket exhausts.
 
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