Yeah, its the 2mm big bore high compression kit, and I do believe it takes it to 636. KWS did the cyclinder head porting blue printing and engine assembly. Millenium Tech. did the bores and Nikasil replating. Theres Carrilo Pro-H connecting rods, APE adj. cam sprockets, Yosh R-55 Stainless system with a carbon cap. Graves levers, rear sets and case covers. Wave rotors. Custom graphics from Fulton Sign. Puig double bubble. On regular pump gas we made 124hp. at the tire on race fuel we got 131 hp. And man does it run. And the latest add on was the fuel injection controler that I picked up from Wiseco. Originally there was a Dynojet PC3 but I replaced it with ours, its alittle more user friendly and you can fine tune it better I think. Sorry to ramble but its the sweetest bike I've ever owned. And I proud of it.