I like my Uptite muffler.
I just put on an Uptite muffler from George at Uptite Husky. It is pretty and quite effective; the bike runs much cooler now and about 25% faster (seat of the pants measurement). I have already done the resistor/PU upgrade too. This bike rips now, and the muffler is so cool you can almost touch it immediately after a ride. Way to go George.
I am getting my bike ready for the TET S in a few weeks, the portion that circles Georgia. I've got a Giant Loop Great Basin bag for the rear and a Fandango tank bag upfront. I'll be installing a cigarette lighter to run my gps and phone this next week. I can't wait for this trip.
I have a 2008 610 with 2400 miles, and the suspension has just started to break in. This is turning out to be a fantastic bike.