Big Gun Exhaust Rev Box CDI Unit for Honda XR50R XR70R XR100R CRF50F CRF70F CRF80F CRF100F CRF150F CRF230F 40 R03 2015 Polaris Ranger 900 Diesel HST Fitments 1997 Yamaha XV750 Virago Fitments 1997 Yamaha XV750 Virago Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line All Balls Linkage Bearing Kit Part Number 27 1007 Fitment Type Unit Sale Qty Kit Style Material Color Size Finish Position Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Piston Cylinder Size Piston Size Added Cylinder Stroke Volume Final Engine Displacement Exhaust Configuration Muffler Size Muffler End Tip Style Windshield Height Windshield Width Handlebar Diameter California Air Resource Board Compliance FALSE Product Disclaimer It increases the overall RPM limit over the stock box and advances the timing curve Big Gun Exhaust Rev Box CDI Unit