got 'em on my 03 b6. have suzuki engine guards that i mount them too. in the process now of trying to get them to work right. had them on the lower bar of the engine guard, but that limited my cornering if they folded down while i was in corners/twisties (big problem now, not my first year of riding a couple years ago when i put them on there). moved 'em to the top bar of the guards but not comfortable to use. thinking of getting some sort of extension to drop em down from the top bar 3 - 5 inches and maybe out forward a bit more... don't have it all worked out yet, but i'll get there.
and i definately use(d) them all the time when doing so longer distance highway riding (while not in traffic... don't trust not having the ability to shift right away if need to brake quickly).
phil