Got a rattle in the passenger side cat. Called the dealership, they won't fix under warranty becuase I have put headers on the car. I was going to pull the y-pipe and cat off this weekend and see if anything falls out. My question for you all is if something happens to knock most of the crap out of it will I stand a chance in hell of not throwing a code or passing emissions? I'll put a new cat on as soon as I can get one. The rattling is driving me crazy.

Thanks,
HF

 

Never mind!! Found the problem!