seems like alot of guys on here are running the fmf gnarly pipe. i run the fmf fatty gold "slightly bent but not dented" series just cause it came on the bike. i am considering getting a new pipe and would like to hear what pipe you like on your k5 and why. don't see alot of guys ,besides BDI,writing anything about pro-circuit even though they make good pipes. keyboards should be smoking this time. MADDOGGY