Yesterday gutted my cats, and the sound difference is quite a bit more than I thought it would be. Anyway, I put in some mil elim's, and everything was fine. I drove about 70 miles, and everything was fine. I got home did some driving around town; everything was fine. I came home, shut my car off, went to start it up again, and the CEL came on. I got the mil elim's off of ebay from some guy who makes them. Anyone know where to get some good eliminators?