K&N Air Filter Velocity Stack Flange (21512-1) Lo-Profile second ring and oil ring

second ring and oil ring are all included in a complete set for 4 pistons

If you've installed these in an Evo 7

89615-WAA01 89615 1

due to the higher profile of HKS camshafts

K&N Air Filter Velocity Stack Flange (21512-1) Lo-Profile second ring and oil ringThis K&N air filter velocity stack flange can be used for a custom intake setup to utilize a 6" air filter. The inner diameter of the flange is just a touch under 3. 25" at 82mm, while the OD of the flange is 3. 5 inches. Made from a hard plastic material. Vehicle Fitment: Universal Fitment Replacement component to the 57 1530 1 Dodge Ram intake Includes: (1) Flange STM is an Authorized K&N Dealer. See more K&N Products