Don't remember cars 75 or newer without cats. Trucks were a different story but these days, anything that's 25 or older isn't tested for emissions in Texas but all the junk that was put on it from the factory is supposed to be on it. Thing is, no inspection stations that I go to here checks. They don't even open the hood. I mean, who daily drives a 25+ year old vehicle other than me?! :D My newest vehicle is a 97 and it's a diesel so no emissions on it at all since new.....and that thing had a cat on it! That surprised me!