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AVOturboworld · 07-19-2013, 10:57 PM

Anything, and I mean *anything*, that replaces the OEM cat will cause you to fail smog if they do a visual check in california. Replacing it with an aftermarket cat will not work, there are none that are carb certified.

07-19-2013, 10:57 PM	#6
AVOturboworld Join Date: Jan 2012 Drives: 2013 "AVO Orange" FR-S Location: Seattle, WA Posts: 1,067 Thanks: 69 Thanked 2,277 Times in 636 Posts Mentioned: 108 Post(s)	Anything, and I mean anything, that replaces the OEM cat will cause you to fail smog if they do a visual check in california. Replacing it with an aftermarket cat will not work, there are none that are carb certified.