Vance & Hines Power Duals Exhaust Chrome for 2009-16 Touring Models Harley-Davidson riders wanting more horsepower and torque turn to these Vance & Hines Power Duals. Hidden behind contoured heat shields, theVance & Hines Power Chamber will dramatically improve the stock performance of your motorcycle Vance & Hines Power Duals significantly reduces the heat generated on the left side of the motorcycle, benefitting the passenger and protecting vital engine components and side covers from heat damage Includes Dual Bung Oxygen Sensor Ports (18mm & 12mm), Full Coverage Heat Shields, Helps Reduce Exhaust Temperatures Up to 250 F Mufflers are sold separately. For a complete performance package, pair Vance & Hines Power Duals with any of the Vance & Hines slip-on mufflers designed for touring models Purchase of the Vance & Hines Fuelpak FP3 Fuel Management System is recommended when installing Power Duals on motorcycles with EFI