S&S Powertune XTO Race Exhaust System for Polaris Pro XP 550 1040 2006 Harley Davidson Dyna Wide Glide Injected FXDWG I Anodized Domes Increase heat resistance Anodized Domes Increase heat resistance and durability Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line All Balls Crankshaft Bearing and Seal Kit Part Number 24 1101 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 Ca ARB Compliance Non CARB Complaint CARB Compliant Product Disclaimer Product Details Product Line S&S Powertune XTO Exhaust Systems Part Number 550 1040 Fitment Type Model Specific Fitment Use Type Unit Sale Qty Kit Style Race Only Size Position Material 304 Stainless Steel Color Finish Exhaust Configuration Single Canister Full Exhaust System with dual Tips Muffler Size Muffler End Tip Style California Emissions TRUE Product Disclaimer Fitment Note Fitment Note Fitment Note Fitment Note Fitment Note they allow you to replace the spark arrestors or tune with optional inserts for the ultimate custom sound and performance