Features a cast aluminum construction with a polished finish, It has a dual plenum air intake with 4" inlets, 3.5" tall and it measures 8" from the air cleaner stud to each inlet, Fits carburetors and TBI throttle bodies with a 5-1/8" inlet, 4" dual inlets are 90 degrees apart and designed to match up to all Spectre 4" tubing, filters and accessories.