Plug-N-Play installation is simple to use and understand Easy push button operation, no computer or dyno required Easy air/fuel ratio adjustment, easily adjusts for modifications: intake, exhaust, cams, etc. Load based operation with tuning capabilities superior to Alpha N type controllers 3 Basic zones of operation that are similar to carburetors Uses O.E.M. base code and does not scramble base code This Item Fits the Following Applications: 2010 Polaris Ranger RZR 800 S 2010 Polaris Ranger RZR 800 2009 Polaris Ranger RZR 800 S 2009 Polaris Ranger RZR 800 2008 Polaris Ranger RZR 800