exhaust question

the cat on my 95 4runner was stolen today. while I was at school somebody just came up and cut it clean off. to get it replaced will cost me $300. is there a way to install a removeable pipe that can be detached and then replaced by an actual cat come smog time or fix it tickets? this way I can avoid spending another $300 on yet another future replacement.

A cat converter will cost you just over $100 at RockAuto.com