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.
- Wide 2500–6900+ RPM power range
- Requires carburetor/throttle body tuning and performance exhaust/intake
- High-performance valve springs, pushrods and lifters required
- Made in the USA
Complete camshaft installation kit with quick change gaskets and premium roller bearings for reliable camplate service.
Pair of precision pins that ensure correct press fit when servicing Twin Cam chain drive cam plates and tensioners.
Precision machined 6061 billet aluminum points cover that bolts to the factory cam cover; includes stainless button head fasteners.
Broad, smooth power from 1900–6000 RPM; bolt-in fit for stock to mid 96" and 103" engines.
Broad, smooth power band with strong low-end torque.
Bolt-in fit for many 88", 96" and 103" engines.
Improves throttle response and fuel mileage; recommended upgrades for some model years.
Fierce-performing camshaft for large and small displacements, offering strong torque and horsepower gains; requires complementary performance upgrades. Made in the USA.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
High-performance cam for 95"–124" engines; requires valvetrain, intake and exhaust upgrades.
Complete camchest rebuild kit that improves oil flow, raises oil pressure, reduces engine and oil temperatures, and smooths operation. Fits '07–'17 Twin Cam and '06 Dyna.