Arlen Ness Stage I Big Sucker Air Filter Kits for 1988-up Harley Sportsters - OEM Cover - 18-825 2004 Arctic-Cat Mountain Cat 900 with 151in Track (2) Aluminum spacers

(2) Aluminum spacers

1996 - 2002 Polaris Indy 500 Classic Touring

Fitments 2020 Yamaha YZ85

No modification for forks required

2004 Polaris ATP 500

Arlen Ness Stage I Big Sucker Air Filter Kits for 1988-up Harley Sportsters - OEM Cover - 18-825 2004 Arctic-Cat Mountain Cat 900 with 151in Track (2) Aluminum spacersArlen Ness Stage I Big Sucker Air Filter Kit Part Number: 18 825 Cover Style: OEM Cover Back Plate: Aluminum Filter: Standard Red Engineered and proven to give your engine maximum airflow for more horsepower & torque The Big Sucker kits are designed to be used with the stock outer air filter cover or an Arlen Ness custom outer cover One piece aluminum backing plate features patented hidden breather technology Each hidden breather is O ringed at the