The KN 57-1133 cold air intake system replaces the factory air filter and air intake housing in many Polaris Ranger RZR models for a guaranteed increase in horsepower and torque. A free-flowing aluminum intake tube helps increase the volume of airflow to your engine. The system is paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media, which is protected by a foam wrap and an enclosed filter housing for additional protection from heat and the elements. The oversized, conical filter design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. Can typically be installed in 90 minutes or less using standard hand tools. Legal in all 50 States.

Vehicle Fitment

Years	Make	Model	Trim
2018–2019	Polaris	RZR RS1	Base
2016, 2019–2020	Polaris	RZR S 1000 EPS	Base
2019–2020	Polaris	RZR S4 1000 EPS	Base
2020–2021	Polaris	RZR XP 1000	Base
2014–2019	Polaris	RZR XP 1000 EPS	Base
2015	Polaris	RZR XP 1000 EPS Desert Edition	Base
2019	Polaris	RZR XP 1000 EPS Dynamix Edition	Base
2015	Polaris	RZR XP 1000 EPS FOX Edition	Base
2017	Polaris	RZR XP 1000 EPS Gold Matte Metallic LE	Base
2015–2019	Polaris	RZR XP 1000 EPS High Lifter Edition	Base
2018–2019	Polaris	RZR XP 1000 EPS Ride Command Edition	Base
2018–2019	Polaris	RZR XP 1000 EPS Trails AND Rock Edition	Base
2017	Polaris	RZR XP 1000 EPS Velocity Blue LE	Base
2020–2021	Polaris	RZR XP 1000 High Lifter Edition	Base
2020	Polaris	RZR XP 1000 Limited Edition	Base
2020–2021	Polaris	RZR XP 1000 Premium	Base
2021	Polaris	RZR XP 1000 Trails & Rocks	Base
2020	Polaris	RZR XP 1000 Trails AND Rock Edition	Base
2020–2021	Polaris	RZR XP 4 1000	Base
2014–2019	Polaris	RZR XP 4 1000 EPS	Base
2019	Polaris	RZR XP 4 1000 EPS Dynamix Edition	Base
2017–2019	Polaris	RZR XP 4 1000 EPS High Lifter Edition	Base
2018–2019	Polaris	RZR XP 4 1000 EPS Ride Command Edition	Base
2020–2021	Polaris	RZR XP 4 1000 High Lifter Edition	Base
2020	Polaris	RZR XP 4 1000 Limited Edition	Base
2020–2021	Polaris	RZR XP 4 1000 Premium	Base