Staintune are having another clearance sale. I can't find a web page for the sale this time, so will run the list of usual makes here. There is a full page ad in this months Cycle Torque for all makes. Anything with twins mufflers is $500 ($1300), single muffler $300 ($700). Good savings to be sure.
Aprilia - Falco, Tuono, Pegaso
BMW - R1200S, 1200ST, 1150GS, 1100R, 1100GS
Cagiva - 650 Raptor
Ducati - 1098, M900, M1000, MS4, MS4R