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.
 
High-quality OEM replacement components for cam bearing assemblies.
Essential shims for precise cam setup. Made in the USA.
Fits 1966–1984 Big Twin engines (except 1980–1981). Increases mid-range and top-end power; idle is unaffected. Check spring travel and clearances on 1980+ models.
Bolts into 1966–1984 Big Twin engines (except 1980–1981); increases mid- and high-rpm power while preserving idle.
Great street cam for 84–88-inch strokers; upgraded from the #6 grind with strong torque from 2,200–6,500 rpm.
High-quality heat-treated cam drive component, made in the U.S.A.; recommended for professional installation.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
Precision sprocket spacers to restore chain alignment. Made in the U.S.A.
Precision spacers that improve drivetrain alignment and durability. Made in the U.S.A.
Durable spacers for cam drive sprockets that maintain chain alignment and extend component life.
Precision-machined spacers that ensure correct cam drive sprocket alignment and reduce wear. Made in the U.S.A.