Join Date: Jan 2012
Location: Piedmont, NC
Thanked 490 Times in 380 Posts
Not sure why it "needs" to be faster. It's not a super sport, but will break the speed limit in any state. Not sure why everyone thinks these bikes are underpowered and feel they need to go faster than that.
Bore kits have been known for shady quality. The 300 stroker you have is plenty; I'm still on my factory engine 250 and the only mod I have for power has been a Leo Vince exhaust, mostly because the factory one is a boat anchor and ugly as sin.
You're looking in territory upwards of $1500+ for gearing, tires, exhaust, fuel commander, and what have you. As jsonder said, add that to the price of the 300, and you're already at the 500r's price tag.
Tis better to be thought a fool and remain silent, than to open one's mouth and remove all doubt.