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Complete set of top, second, and oil control rings for two pistons.
Barrel-face top rings; reverse torsional second rings; three-piece oil control rails for reliable oil control and sealing.
Two rings per groove; follow piston instructions for correct ring end gap.
- Includes top, second, and oil control rings.
- Top rings barrel face; second rings reverse torsional taper face.
- Three-piece flex vent oil control rings for positive oil control.
- Made in the USA; includes enough rings for two pistons; two rings per groove.
- Complete set for two pistons: top, second, and oil control rings.
- Barrel face top rings and Napier second rings with reverse twist for improved sealing.
- Three-piece Flex Vent oil rings with four steel rails and two expanders for positive oil control.
- Made in the USA.
Complete replacement piston ring set including top and second compression rings plus three-piece oil control rings. Includes rings for two pistons; made in the USA.
Complete set of top, second, and oil control rings for two pistons. Restores sealing and controls oil consumption.
Complete kit with top and second compression rings plus three-piece oil control rings; includes rings for two pistons.
- 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.
EST gasket kit with embossed stainless steel head, base, and rocker gaskets covered in proprietary rubber. Includes all gaskets, seals, and O-rings to rebuild the top end. Made in the USA.
Transparent cam cover designed to match Assault series air cleaners. Made in the USA.
Comprehensive set of gaskets, seals and O-rings; made in the USA for long-term reliability.
High-quality cylinder head gasket engineered for long-lasting seals. Multi-layer and composite options resist heat, creep and cracking. Made in the USA.