I am most likely moving to the LA area in California, and don't want the law casually looking under and spoting empty pipes where cats should be, I have longtubes, so I know they aren't legal, but since I have them already, I can just take a chance and hope I'll pass, I'm going to call Jet Hot and see if they can sell me or weld on the emissions bunges. So where do I find some cheap cats that will fit under the car. Also is the AIR fitting necessary for the cats to work right, I've heard that without AIR they will die much quicker, I was just planning on hooking up the pipes and leave it at that since I have it deleted from the computer, but I will program it back in, if it affects the longevity of the cats