Big Gun Exhaust Rev Box CDI Unit for 2002 08 Yamaha YFM660 Grizzly 40 R17 MPN_6792B Product Details Product Line Namura Product Details Product Line Namura Top End Gasket Kit Part Number NX 70106T Fitment Type Model Specific Fitment Use Type for use when rebuilding your top end or replacing pistons Unit Sale Qty Style Size Age Group Gender Position Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Material Color Finish Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Overall Seat Width Overall Seat Length 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 Emissions Product Disclaimer 1 1 4" clamp maximum I Advanced timing curve 6 month Limited Warranty