Quote Originally Posted by avguy View Post
You might want to read through the doc linked below, especially the appeals process which you'll probably need to do, if you want to try pushing this up the line. Maybe leafing through a hard copy of this while you're at the stealership might convince them you'll be willing to go for the jugular. I don't see anything in there about titles, just a bunch of stuff about failure to maintain (which is what they'll probably fall back on to deny the warranty claim).
Good luck! (you'll need it)

http://epa.gov/obd/pubs/420f09048.pdf
Thanks I talked to the EPA and got a script of what to say. I then called a regional GM department and filed my issue so it would go up the proper chain. I am supposed to get a response tomorrow so I'll keep my fingers crossed. Plan B is likely still cut out the cat, scrap it, and weld up a connecting pipe to fill in where the cat was. I'm not worried about CEL codes as long as the car runs fine. A little dip in MPGs isn't the end of the world, it won't be worse than 1-2 MPG