Yes when I was younger I deleted my cats and sold them off not knowing how expensive they would be. I will only be putting them on for smog checks.I guess the 2015+ cats might work; but I'd look for cats from the same chassis as the car (2011-2014?) to avoid all the likely hassles and problems with using a different year . . . I guess you don't have your original cats?
Yeah I was kind of dumb when I first started getting into cars and didn’t realize all that things that would be needed when the DMV came knocking. I sold them off thinking I wouldn’t need them.If your aim was to cut and weld then you can do anything you want I suppose but that isn't exactly ideal. Why exactly won't it pass? Why wouldn't you just buy the correct cats for your car? The car came with cats that would make it legal assuming that it was destined for original sale in CA.
And it is not the State I am worried about, it is the Feds that literarily say you can't even move the cat making Long tube headers illegal and the shop can loose $25,000 for modifying or removing any Emission control device and the owner can loose $15,000 for it if he/she does it. Now the Feds are coming down even harder on anyone that sales or tunes off road equipment and even modifying a stock vehicle to go off road racing with out the emissions is illegal in the US.Running no cats at all is illegal. In some states the fine is in the 1000s of $ and it only takes a cop pulling you over to look with a mirror to impound it and cost you big bucks. Cats cost no real power loss anyway as long as they are not clogged so it's completely unnecessary.
Unfortunately, now is an expensive time to buy used cats with the price of the precious metals used in them more than gold in a few instances. Rhodium is about 15x the price of gold right now for instance.
Law is already there, enforcement is lacking in most places but when it does get enforced there will be a lot of people in trouble. My buddy had passed emissions twice with his truck and was written at a roadside Sobriety check point for other than stock Catalytic Converters in a non compliant location the original fine was $15,000 and lowered to $1,500 plus all new exhaust including Exhaust manifolds. He knew he was in trouble when the court date and location were in the Federal Building and not the County courthouse.There's always talk from far left or far right individuals or groups about proposing new or canceling existing policies regarding emissions or environmental issues. They rarely get implemented or passed into law being it overly far reaching or overly unfettered. The middle is always a good place to be.
Until it's in the news that a law is being run thru Congress or being signed into law by a president then I wouldn't worry too much.