Anybody know what they look for and what they fail your emissions for in Maricopa county? Will a 5" turbo back with no cat on an LLY get me busted?
Yes, they specifically looked for mine during my last test. Thats why I did just an EGR cooler delete and not a full egr delete. As far as turbos go, unless they have two Duramax's In the bay to look at at one specific time they arn't going to know the difference between an aftermarket and stock turbo. Now twins is a different story... I can not even speculate what they would do about that.SO according to this does that mean they are going to get under the hood and check for the EGR?