High-quality, fuel-resistant cover seal engineered for long-term reliability. Made in the USA.
Engine

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- 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.
Comprehensive gasket kit with MLS head gaskets, Viton-coated base gaskets and AFM exhaust seals; made in the USA.
Complete gasket kit with MLS head gaskets, Viton-coated base gaskets, blue Viton valve stem seals, and AFM exhaust gaskets. Made in the USA. Includes motor gaskets plus primary, derby and inspection cover gaskets where applicable.
Covers the gap between the transmission top cover and the engine cylinder for a finished look. Installs quickly and easily. Durable polished finish.
Increases pressure relief valve pop-off psi. Spring alone provides the correct spring rate to control pop-off pressure and oil flow in the bypass port. Made in the United States.
Complete primary gasket kit for inner and outer primary assemblies. Aluminum-core gaskets with a nitrile outer layer resist temperatures above 205°F and offer about 85% shape recovery. Made in the USA. No gasket sealer required.
Premium gasket pack offering multiple gasket types and advanced sealing technologies for reliable, fuel-resistant performance.
Premium rocker gasket made from fuel-resistant materials with a stainless steel core and Viton coating for lasting seal performance.
Broad midrange power band camshaft with a smooth lobe design. Made in the USA. Performance pushrods, lifters and clutch recommended.