Good deal, Shadowdude!
You are just taking back what the EPA stole. These
engines aren't excactly power monsters, but some
basic changes really wake up what has been compromised
to meet emissions requirements. If everything's done
correct and careful, mileage will stay the same or even
slightly improve. Less gas = less emissions anyway.
I did the .22, removed the snorkel, and opened the stock
exhaust for a freer breathing, responsive, and very fun motorcycle.
Thanks Vat for the useful info in the linx. U rock as usual for doing
homework and digging up the stuff the guys need.