TRE wont slow u down bro-but if you're lookin for more acceleration, go with any of these:
1- 16/42 gears
2- Small airbox mod
3- BMC Race Air filter
4- PAIR Blockoffs
5-New triple clamp cover (allows u to drop front forks a bit-dont go too far...1" is enuf, dont wanna smash the front fender into the nose if ya hit a pothole. But that drop will help you get off the line without doin a BigDiesel "ooooohhhhh sshhhheeeee-aaaaatttt" wheelie when you hit it in 1st...and you'll corner a lil better too)
6-FULL EXHAUST!!! I like HMF, some like Brock Hindle, others Tsukigi...tomay-to, tomah-to, ya feel me? no slip-ons tho; they are a waste of $$, big-time. little or no HP increase
7-PC III USB...but this will only make a difference if you have the exhaust.
IMO-throw on a full system, (check here or E-bay for a deal) find a PC III usb and send to Johnny Cheese for a map...get somebody to help you do the small airbox mod (hell, mail it to me if you're worried about wreckin it-I can do it in a day and ship it back out, no prob) and when you throw the new PC III in with JC map and get the pipes on...make sure your grip is tight bro-cuz that bike is guna shoot off like Rosie O'Donnell after a plate of refried beans and Jalapenos!!!!