just installed full arrow kit with carbon cans, freakin sweet! [thumbsup](s2r800) quality is awesome. beautiful welds and presicion fit slip joints, the pipes are realy nice. the cans have to be seen in person,serious attention to detail. then there is the sound, oh the sound! 105db, real throaty, nice and deep. either way you go, get rid of the cat. the cat is pretty restrictive and takes all the depth out of the tone. i ran my monster without the stock cans and s-pipes(open cat) for a while,it sounded pretty good , but nothin like the arrow kit. i understand the leo vince stuff to be on the same par, but have no personal experence. a possible draw back to the arrow's is a lack of a db killer(available w/ ti cans, but not carbon) but i'm surrounded by harley riders so i have no use for them.my point is the arrow system is freakin sweet! and i'm stoaked,and loud! [thumbsup]