- 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.
Engine
Active filters
Transparent cam cover that matches Assault series air cleaners and allows internal inspection. Made in the USA.
Transparent cover for viewing internal engine components. Matches the Assault series air cleaners. Made in the USA.
Transparent cover for viewing internal engine components; matches Assault series air cleaners. Made in the USA.
Directs air through a side scoop to cool cylinder heads; includes a high-powered waterproof fan, temperature switch (activates at 140°F), manual override, wiring and hardware. Plug-and-play installation with no drilling. Not for "Twin Cooled" models.
High-performance camshaft with Endurance Ramps for broad torque, reduced valve train noise, and billet steel construction.
Includes all hardware required to install an inner primary. Made in the USA.
Plug and plug kits for Harley-Davidson oil systems. Complete with washers or O-rings; made in the U.S.A.
Three custom screws to mount S&S air cleaner covers. Made in the U.S.A.
Includes four studs and four flanged nuts for secure exhaust attachment.
Made in the U.S.A.
Includes eight studs for one cylinder head. Durable corrosion-resistant finish. Made in the USA.
1-1/2"-24 left-hand threads. Made in the USA. Precision lock nut for transmission mainshaft.