OK, when I bought the 80 it needed the Y pipe and both cats. I bought Walker for both pieces from Rockauto, great price, had a $50 rebate, and shipped quick. Like all walker products I've ever installed both items fit perfectly. Now I want to replace the muffler and tailpipe, and see no Walker parts anywhere. Rockauto offers Bosal parts for the muffler and center pipe section and for the tailpipe. Price is reasonable and I am leaning toward ordering them. Any reason to stay away from Bosal? Thanks for any input. Gary