Bought my Wee from a friend my age who also owns a Goldwing and knew he didn't abuse the bike, although it was a bit neglected over the last few years he owned it. I've owned it now for about 14 months and 10,000 miles. About 500 miles ago, I installed an Akrapovic slip-on, new chain/sprockets and a K&N air filter. I also have a Power Commander III that is not yet installed(ordered it with the slip-on). My experience with the Akrapovic is beyond my expectations of being an upgrade. My location is just slightly above sea level(about 200') so I get the most performance from my Wee's engine....and it is FUN FAST!! And that exhaust note!!!....absolutely fabulous(baffle removed). Even with the baffle removed, the sound is very throaty(bass) without being annoyingly harsh or raspy like those Harley's with drag pipes. An unexpected asset has been the around-town slow speed engine tractability as I try to avoid the surging issues that seem to plague oversquare 90 degree V-twins whether FI or carb'd. When I installed this exhaust, I also replaced the chain/sprockets and chain carrier dampers. My Wee went from a clapped out bike to a smooth and new-feeling motorcycle.