Jhill

So what do my California buddies do about the cats? It's basically the last thing I could do on my NA z and probably will just leave well enough alone and not get into the hastle but curious has anyone ever tried to emissions test with one of the hfc available and passed visual? I assume they still pass actual sniff test otherwise what would be the point and just run test pipes. When I look from the top you can kind of see the cats but not sure how much difference the hfc options would look to see if they would get caught.