I was reading in another thread many of you put cat-back systems on your V-10's. (I have a 2000 F250 V-10)

What kind did you put on? Headers or just exhaust? And how does it sound?

I've read some guys that put some on (on other forums) and didn't like the sound. Like, I've heard flowmaster 50 series sounds better than 40. I'm getting ready to add one when this snow clears. And I don't want to sound like the UPS man.

Also, anyone put anything bigger than 33's on a SD Ford WITHOUT lifting it? Anyone know how big you can go before rubbing? Figured I'd ask here since I saw some of you pimped yours out in the other thread.