While parts are on the way to fix my rear driveshaft, bulbs in the center console to get the "D" light working again, Radio to replace the factory unit on the shelf, I got another problem. Had a Buzzing sound from my exhaust last night and checked it this morning. The heat shield on the front Y pipe is rotted off at one bolt. No problem just bend it a little to shut it up. Well took a look around and the hanger at the second cat is also rotted through and the system is quite rusted throughout. 1. Has anyone used the cats from DiscountConverters? 2. I'll have to cut out the O2 sensors, what are their chances of survival and how long might they last afterwards? 3. Is the Borla a clean install and a good choice or should I go OEM. Dan? I should mention that I don't put much worth into how the truck sounds.