NaughtyGeek

I used the search and didn't find the answer, so hopefully this isn't one of those questions that's been answered 1,000,000 times. If I got to a stage 2 cam (or any custom cam for that matter)and ported heads in my 04 GT, will I still pass emissions provided I stay with a catted exhaust? All the cam kits on Comp Cams say they aren't legal but I'm thinking that's to cover their butt.

98MustangSTL

As long as your check engine isn't on, you'll pass.... That's how it is in St. Louis, MO

tbirdscwd

It depends on where you're getting tested though. A mustang with stage 2 cams would almost certainly fail a sniff test in CA.