Picked up a Jardine GP-1 for $80 shipped. Granted it sucks for sound but looks better than the stock pipe and saves 6.4lbs off mid/back end.
Future plans involve a full R-55 or Akra setup with Power Commander, but I'm enjoying the gas mileage I get on it right now and wanted that whale tusk of a mute button off.
http://www.youtube.com/watch?v=xwaHv0Rt4aY