Engine
Active filters
- Pairs with Twin Peaks handlebar
- Direct bolt-on for Touring bikes
- Three-piece, easy-to-adjust design
- Mitered corners for seamless flow
- Not for use with fairing lowers
- 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™ coating for reduced wear and ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the USA.
Forged pistons with generous valve pockets for big valves and cams.
Includes rings, piston pins and circlips for two pistons.
Force-fed pin oiling and a pressure-seal groove enhance sealing and durability.
Compact oil cooler kit with AN #6 fittings, supplied clamps and reducers, and precision-machined components for durable, easy installation.
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.
Complete oil cooler kit with AN #6 fittings and frame-mount clamps.
CNC-machined billet aluminum construction for precise fit.
Replacement ring set for one piston; verify piston compatibility before purchase.
Custom aluminum cover with ball-milled finish. Sold individually.
Polished chrome billet inspection cover in ball-end milled or smooth style; includes chrome hardware. Sold each.
Billet-style inspection cover with included mounting hardware. Sold individually.
Includes rings for one piston. Fits pistons of the same design only.
Replacement rings for a single piston; fit only matching pistons from the same manufacturer.