Engine

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Durable short straight metal tyre valve for tubeless rims suitable for various vehicles.
- 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.
Covers the gap between the transmission top cover and the engine cylinder for a finished look. Installs quickly and easily. Durable polished finish.
Smooths the transition from the cylinders to the engine cases for a clean finish. Easy installation with basic hand tools.
Direct-fit oil cooler cover that installs like the stock factory cover for a quick bolt-on upgrade.
High-strength forged piston kit with premium wrist pins, carbon steel wire lock and JE Pro Seal rings.
Enhances the center of the oil cooler trim with a stylish guard. Easy to install and built in the USA.
Dresses up the oil cooler area with matching vent‑screen material; easy to install. Made in the USA.
High-strength piston kit with premium wrist pins, carbon steel wire lock and JE Pro Seal rings.
High-strength forged piston kit with premium wrist pins, carbon steel wire locks, and sealed rings for durable performance.