S&S Mr103 Easy Start Cam Kit For Harley Twin Cam Look no further if you would like to improve your late model 2007-2014 V-Twin camshaft. Features: Start any engine regardless of displacement or compression ratio with a stock starter Save your starter and battery tested for 10,000 starts without running battery down Allows for easy start by initially reducing cranking compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance Available in chain drive and gear drive versions All chain-drive cams include installation kit All gear-drive cams include 4-gear set and installation kit Made in the USA Mr103 Cam Info: Bolt-in cam for 103 Twin Cam engines Broad torque curve improves output over the entire RPM range Intake open/close 13/33 Exhaust open/close 50/22 Intake duration 226 Exhaust duration 252 Lift .585