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Thanks guys, I kinda figured GroupK had some good stuff but it is more tailored for racing and not quite as tuned for freestyle.

So I got a 99 RN with head and pipe. I'm thinking its time for me to upgrade and get some more power out of my 701. Anyone know anything about the GroupK 845cc "hammer" freestyle big bore kit? Anyone have any good/bad luck with dealing with them? I know a few places that offer big bore kits...