FITMENT: Most 1-3/4" O.D. 1984-2017 Twin Cam, Big Twin and XL Exhaust Systems For Harley All Big Twin models 1984-1999. For Harley All Sportster Models 1986-Present. For Harley All Twin Cam Models 1999-Present. All Custom Motorcycles 1-3/4" Exhaust Port (For Harley Models). FEATURES: - Brand new - Material：Carbon Steel - Color:Silver DESCRIPTION: - Improves power by increasing the exhaust gas velocity - Helps to reduce exhaust reversion - Simple installation requiring no permanent modification - Great for use with unbaffled exhaust that require some type of back pressure to run right - CNC machined with precise angles for maximum effect - Extra exhaust port gaskets are not required PACKAGE INCLUDES: 2PCS Exhaust Port Torque Cones.
