ProCom Performance CDI Part Number: PE-C-MY250-B Performance CDI replaces OEM unit Timing curve optimized for maximum performance Modern circuitry allows for better spark energy Simple plug in performance upgrade Comes with a Full One Year Warranty Programmable PROCOM Performance CDI for the Yamaha YZ250 (2010-11) which allows you to adjust both timing and rev limit for the engine. All of the 9 preloaded timing maps provide a 500 RPM increase in RPM limit over stock and can be selected by simply turning a switch dial on the top of the unit. These maps were custom made for these UTVs and will offers different ignition timing for various conditions. This Procom Performance CDI also has a built in USB port and it comes with Windows software which is very easy to use. Using this software you can adjust timing within a +32/-10 degrees of stock timing at various RPM points and set the rev limit at any value to create a custom map. And it is very easy to switch the unit back to the factory stock condition. Procom also provides its 10 preloaded maps available for download on http://www.procomeng.com CMY250B-01 - This map is designed for beginning riders on stock machine. CMY250B-02 - This map is designed for medium-level riders on stock machine. CMY250B-03 - This map is designed for advanced riders on stock machine. CMY250B-04 - This map is designed for beginning riders on minor modified machine. CMY250B-05 - This map is designed for medium-level riders on minor modified machine. CMY250B-06 - This map is designed for advanced riders on minor modified machine. CMY250B-07 - This map is designed for beginning riders on general modified machine. CMY250B-08 - This map is designed for medium-level riders on general modified machine. CMY250B-09 - This map is designed for advanced riders on general modified machine. CMY250B-10 - This map is designed for riders on aggressively modified machine. This CDI box is a direct plug in replacement CDI. Simply locate and remove the stock CDI, and plug the Procom unit directly into the wiring harness. Suitable for stock and modified machines. We cover all our PROCOM Performance CDIs with a full one year warranty. Items Included Fitments 2011 Yamaha YZ250 2010 Yamaha YZ250
