Fitment - Replacement for intake tube with 3 inch, 3., 5 inch and 4 inch diameter Function - Improves throttle response and more horsepower Cold air intake filter,Clamp-on Air Intake Filter Cold Air Cold... About this item Universal replacement air intakes filter Made of 3-layer synthetic fitler element with deep-pleated design.Quality materials used throughout including washable,oiled synthetic media,urethane,and steel mesh. High flow filter designed to fit 3 inch/3.5 inch/4 inch tubes. Improves throttle response and more horsepower. No installation guides are included,We highly recommend to... Universal Clamp-On Engine Air Filter Specification Fitment:Replacement for intake tube with 3 inch, 3-1/2 inch and 4 inch diameter Fit type:Universal Fit Material:Cotton, Rubber Package Includes 1 x Air Filter, 2 x Adapters Easy to Install - Simple clamp-on design makes it easy to install for perfect fit., Reliable Performance Universal Clamp-On Air Filter, Fits 3, 3.5, and 4 Sizes 3 Inch 4 Inch Intake Filter Universal Clamp-On Engine 3/3.5/4inch Inlet Cold Air Intake Cone Washable Dry Air Filter