They have roughly 8K miles on them. In beautiful shape. They've been my favorite ab's so far. I've had 5 now. lol No GT500's, no Flowmaster, no muffler delete types. I'm thinking I wanna try Borla, Corsa, Bassani, or maybe even Roush this time. Still debating the Roush's, as I'm not sure I wanna go that loud since I run an ORX and resonator deletes. Ran a set of Flowmaster Outlaws like that, and WOW! Hahahaha