Big Gun Exhaust Rev Box CDI Unit for 2003 06 Polaris 90cc ATV models 40 R10G feed mpn 40074M07800 Product Number: 1468 Product Number: 1468 Product Details Product Line Wiseco Piston Rings Part Number 3504XC Fitment Type Model Size Specific Fitment Use Type Replaceent Part for Wiseco Aftermarket Piston Kit ONLY Unit Sale Qty Ring Kit for Single Piston Style XC Style Rings Size Position Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Material Aluminum 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 89 The Big Gun Rev Box is offered for various offroad MX and ATV models Increases overall RPM limit