Sound is very much like color, in that what I like you may not like, and most car people won't like anything that you do. IF you have a open budjet the Yoshimura pipes and single muffler isa great system, the Muzzy is nice, Vance and Hines, FMF has joined the muffler/street market, Jardine...don't purchase anythig till you have seriously read and researched it on the web, and read about it in the web. Get a SPORT RIDER Magazine...go to Places on theweb that sell discount systems and see what they have to offer then go to the specific web site like, Micron, Arrow, FMF, Muzzy, Yoshimura...you get the drift...get the exhaust pipes, muffler/can, and the jetting stage 3 kit for your bike when you order it. ALso replace your airfilter with a better on like K&N and keep it well oiled...or add on the seperate airpods. Try to find one thtat has repackable baffles. Basically you remove the baffle replace the fiberglass and then wrap it with apiece of steel wire to hold the glass in place....wrapping the baffle in Stainless screen like in your windows, just several more wraps and you have an awesome sound...for a long time!