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.
EST gasket kit with embossed stainless steel head, base, and rocker gaskets covered in proprietary rubber. Includes all gaskets, seals, and O-rings to rebuild the top end. Made in the USA.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
Replacement ring set for one piston; verify piston compatibility before purchase.
Complete gasket kit with MLS head gaskets, steel Viton®-coated base gaskets, blue Viton valve stem seals and AFM race-style exhaust gaskets. Includes motor, primary, derby and inspection cover gaskets where applicable. Made in the USA.
Aluminum Foamette Material gasket for reliable carburetor to backing plate sealing. Made in the USA. Simple fit and durable performance.
High-quality cylinder head gasket engineered for long-lasting seals. Multi-layer and composite options resist heat, creep and cracking. Made in the USA.
High-quality, fuel-resistant oil pump gasket with AFM construction and aluminum core bonded to a nitrile rubber coating. Made in the USA.
Aluminum Foamette gasket with aluminum core and bonded nitrile coating. Does not require gasket sealer. Made in the USA.