CAST PISTONS EVO 80CI 10.5:1 .010 fitment_Polaris-UTV_RZR_2020 The Primary Low Boot is

The Primary Low Boot is a little shorter than the Primary Engineer

That means you can submerge it in a few feet of water for up to 30 minutes and it will still work like a charm

BoonDocker's In the Tunnel Deep Snow Exhaust System will keep breathing in any snow condition

cost effective system for repairing damaged or worn threads

Piggy back reservoir • Performance High-Flow Piston • Precisely valved and tuned • 3/4” Chrome Shaft • PTFE Lined Spherical Bearings • Progressive Closed Cellular Bump Stop • Shot Peened & Preset Chrome Silicone Wire Springs • Dual Rate Spring Rate Tuning • Adjustable Billet Crossover Rings • Billet Compression Adjuster • Spherical Rebound Adjuster • MADE IN THE USA

CAST PISTONS EVO 80CI 10.5:1 .010 fitment_Polaris-UTV_RZR_2020 The Primary Low Boot isKB Hypereutectic alloy pistons are cast with a 16% high silicon content that has very high thermal barrier properties along with a low thermal expansion rate, allowing tight piston to cylinder wall clearances. This makes them ideal for air cooled engines, offering optimal ring seal, quieter engine running and reduced wear. Hypereutectics are best suited for stock or mild compression ratios up to 10. 5: 1 running on pump fuel.