Engine
Active filters
- Bolt-on power: +40–50% on stock 107", 114" and 117" M‑Eight motors.
- Compressor and turbine housing with Garrett internals; plenum with integrated blow-off valve.
- Includes injectors, spark plugs, boost gauge with mount, oil feed/drain lines, custom cam cover, tune files, hardware and gaskets.
- Requires Thundermax ECM (sold separately). Does not fit Twin Cooled or non-removable fairing lowers. Offroad use only.
- Made in the USA.
Complete top-end piston rebuild kit with X-Ring package and hardware. Made in the USA.
ArmorX™-coated pistons with ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the U.S.A.
ArmorX™ coating for reduced wear and ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the USA.
Forged piston kit with ArmorGlide™ coated skirts, rings, retainer clips, and chrome piston pins. ArmorPlating on Twin Cam pistons improves ring seal and detonation resistance. Made in the USA.
Forged piston kit with ArmorGlide™ skirts, rings, retainer clips, and chrome piston pins; Twin Cam ArmorPlating for added protection. Made in USA.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
Replacement gaskets for cam chests. Made in the USA.
Replacement ring set for one piston; verify piston compatibility before purchase.
Comprehensive transmission gasket and seal kit. Available with gaskets and seals. Made in the USA.
Includes screws and seal washers. Easy installation; verify compatibility before fitting.
Complete gasket and seal kit for the deflector plate that prevents leaks and restores reliable sealing. Made in the USA.
Direct replacement engine gasket for reliable sealing and leak prevention.
Replacement gasket for cam chests. Made in the USA.
Oil deflector seal for Harley-Davidson models. Helps prevent oil leaks and protects surrounding components.