Compact full system with PowerPort crossover for class-leading power, RPT-style premium sound, and rolled-tip styling.
Subcategories
Replacement bearing for 5-Speed Big Twin main drive assemblies.
Replacement seal for 5-Speed Big Twins. Direct-fit, precision molded for reliable sealing.
Die-cast domed derby cover. Includes mounting hardware. Some models require specific gaskets; check fitment.
Used to add forward controls on FXD ('92–'05) and FXR ('82–'00); seals the primary cover opening for a finished look.
2-into-1 Nasty Bastard Exhaust System with 1-3/4" headers, tapered 3"–3-1/2" megaphone and 37" length; includes performance baffle. Made in the U.S.A.
2-into-1 equal-length headers with a stepped 1-3/4" to 1-7/8" transition; advanced inner collector; direct-fit for '91–'17 (mid controls) and '07–'17 (forward).
Equal-length headers for balanced flow; unique front-mounted collector to improve power; rear header wraps around the ignition cover for added clearance; heat shields and covered collector for a clean look; made in the U.S.A.
Plated eagle and banner derby cover with recessed script—adds classic styling and depth.
High-horsepower 2:1 exhaust with equal-length stepped headpipes, tapered megaphone muffler, removable baffle, and full heat shields.
Precision CNC-machined derby cover; includes mounting hardware; made in the U.S.A.
High-quality cast construction protects the drivetrain; installs with OEM mounting hardware.