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Mounts S&S E/G or Keihin CV style air cleaners to Mikuni HSR 42/45 carburetors. Made in the USA.
Precision J-form cylinder stud kit with eight studs, moly assembly lubricant, and thread sealant. Stock replacement and reusable; manufactured by ARP® in the USA.
Heavy-duty replacement seals for the Harley-Davidson TSM connector to maintain a watertight connection.
Reduces rocker arm end play and engine noise. Recommended side clearance: 0.0035" - 0.005". Helps limit wear on M8 rocker standoffs. Professional installation required. Made in the USA.
- 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.