Hi everyone, just found this site and i am very impressed with everyones knowlodge on here. I have an 05 shee thats pretty much stock other then the fmf pipes and some bling bling. just wondering about a few thing i have seen like 4mil. what is this. also would like so advice on big bore kits what all do you need to do to the motor if you do a big bore kit i found one on ebay thats a 421cc kit but only has the pistons rings and gaskets. my motor is all stock and after 4 yrs of riding shes just not as scary as it was when i got it might just be getting use to it i guess but i think its time to build it alittle more. any advice would be appreciated.