6-Inch Air Filter Velocity Stack Flange

This K&N air filter velocity stack flange, part number 21512-1, is engineered to facilitate custom intake systems, enabling the use of a 6-inch air filter. Constructed from durable hard plastic, this component offers precise dimensions with an inner diameter of 82mm and an outer diameter of 3.5 inches. It serves as a replacement part for the K&N 57-1530-1 Dodge Ram intake system and is also compatible with other custom setups requiring a 3.5-inch coupler to connect to a 6-inch air filter. This adapter expands the filter application possibilities for custom air intake builds. While it is listed as having universal fitment, it is a direct replacement component for the 57-1530-1 Dodge Ram intake. It is crucial to verify the specific requirements of your custom intake setup to ensure compatibility with the 3.5-inch OD and 82mm ID specifications of this flange. The package includes one flange.