My local dealer is insalling this Stage IV kit (part 92500011) as I write this thread. This kit apparently was released in February of this year and does not appear in the 2012 catalogs. Says it fits '10 and later touring bikes with a 103 but can upgrade from a 96 with additional purchase of big bore cyclinders. The thing that sold me besides specs of 103hp and 110 ft-lbs is that it "will maintain the factory warranty". I still have about 3 years of warranty left so that was a HUGE selling point. This is my first engine build EVER. Its unnerving to see my bike apart and missing its heads.