Download Harley-Davidson Sportster Mid-Length Installation Guide – 1. Find and unplug the O² sensor wires from the wiring harness and remove the ZIPSTRIP holding front O² sensor wires to the frame. Feed the end of the wire through the frame so they are free from the motorcycle. Note: pay attention to wire routing for re-installation. 2. Loosen the heat shield clamps on both the front and rear head pipe to gain easier access to the mounting nuts. 3. Remove the two head pipe mounting nuts from the flange at the heads. 4. Remove the clamp bolts that mounts the rear head pipe to the belt drive cover bracket. 5. Remove the two bolts from each muffler body where they attach to the stock mounting bracket. Carefully remove the exhaust system from the motorcycle and set aside. 6. Using a 7/8″ wrench, carefully remove the O² sensors from the stock head pipes and save for re-use on your RUSH system. 7. Remove the drive belt cover and remove the bracket off the rear cover bolt, bracket will not be re-used. 8. Loosen the brake rod at the rear eyelet using a T-30 torx socket. 9. Remove the three mounting bolts and washers attaching the exhaust mounting bracket. 10. If equipped with mid-controls, remove right side foot peg before installing your new RUSH system.