Aggressive looking tilt forward mounted air cleaners available in three styles, with a show chromed or black finish. Kits come with HP air filter element, 90 degree manifold and a CNC machined billet aluminum housing. Fits 1986 to present XL Sportsters, 1984 thru 1999 Evolution Big Twin and 1999 thru 2017 Twin Cam with Keihin CV or cable controlled Delphi EFI when installed with the matching air cleaner support bracket as listed with our other HP series air cleaners. Air cleaners are 4 1/2" (11.5 cm) in diameter and vary in length from 10" (25 cm) to 12" (30.5 cm). The horn on the curved model is 360 degrees rotatable.