AMRRACING- REV Box igniter Upgrade -Yamaha Raptor 50-All Years Stage 3 - CDI Increased Rev Limit!,Increased Horsepower! Work with or without Digital Dash features,With a Hotter Spark! Improved Throttle Response Easier Starting Most Aggressive Timing Curve available! Eliminates stock ignition "cut out" Easy Plug & Play application, NON-Programmable, installs in minutes