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.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
Complete gasket and seal kit for the deflector plate that prevents leaks and restores reliable sealing. Made in the USA.
Progressively wound racing valve springs offering improved fatigue life and consistent high-rpm performance.
Precision-machined nickel bronze construction for excellent wear resistance and heat conductivity.
Compatible with no-lead fuel; accepts various valve-stem materials.
Accepts special valve guide seals (sold separately). Made in USA.
Precision-machined shouldered valve guide for superior wear resistance and efficient heat dissipation.
Precision-machined cast-iron valve guide compatible with unleaded fuel; OEM-style replacement.
Precision valve guides with tapered nose design, no-lead fuel compatibility, and top-hat seal fitment. Made in the USA.
Precision-machined cast iron valve guide compatible with unleaded fuel and all valve-stem materials. Made in the USA.
Precision-machined shouldered valve guide compatible with no-lead fuel; accepts special seals (sold separately). Made in the U.S.A.
Precision-machined shouldered valve guide; compatible with no-lead fuel. Sold each.
- Precision-machined cast iron construction
- Compatible with no-lead fuel and all valve-stem materials
- Accepts special valve guide seals (sold separately)
- Made in the USA
Precision-machined cast iron valve guide compatible with no-lead fuel; seals sold separately.