Bronco AU-09158I Intake Valve exhaust-slip-on-silencers 2021 Polaris 850 INDY VR1

2021 Polaris 850 INDY VR1 137

and all triple Kawasaki models (except XL1200 LTD and GP1200R)

1989-1990 Polaris Sprint ES

2015-2022 Yamaha YZF-R1

Both cost effective and performance in mind

Bronco AU-09158I Intake Valve exhaust-slip-on-silencers 2021 Polaris 850 INDY VR1Bronco offers OEM Replacement valves for both utility and sportmodel ATVs. OEM Replacement valves are made of durable SUH35B heat resistant steel that also come with fill Nitride finish for further durability and resistance to corrosion. Performance valves receive a swirl polish, smooth stem treatment, and are made of 21 4N SUH35HT stainless steel. Performance valves are generally reserved for high performance reving machines so these valves are