alright... I'm just going to go with my gut and just get a bigger bike because obviously it's not worth it to get info. on some upgrades to a bike that i love. I have done a few track days and have a buddy thats getting me into more racing. I will continue to do track days. I wouldn't upgrade my bike just to see how fast it will go... I am a straight up gear head and i love tinkering with mechanical things, and if it will in some way benefit me and make something faster....GOOD. thanks for the advice...to those who are helping.

-Michael

 

You get can't the parts and if you do somehow find them you'll pay out the *** for them. Once you've done a full exhaust, PC3, air filter, ignition advancer and gearing your about done as far as practical HP mods go. You could also change the volecity stacks and see what happens for fairly cheap.
If you want to stay 600cc and get a big power boost then buy a new 600. Otherwise enjoy the F4i. If all you care about is strait line power the F4i wasen't the best choice.