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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
We have different spring rate options available (see menu above)
939 Piston Kit
oversize airbox
Direct Bolt-On Upgrade: Exact factory fitment makes installation quick and totally painless
Exhaust Valves Rave Style / Arctic Cat Category_Default Category/SLED/Racing/Arctic Cat/Arctic Cat ZR 6000 R-SX We have different spring rateWe have upgraded our exhaust valve technology from a membrane bellow style actuator to a piston style actuator. A much simpler design that uses less components and eliminates bellow failure in big bore and turbocharged applications. Our piston mechanism stays lubricated by the engine's 2 stroke oil system and is actuated by the exhaust pressure from the cylinder. Same design works well with naturally aspirated engines as well. We developed this valve
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US$ 133.00