JEGS drop base spun aluminum air cleaner utilizes radius air flow technology to smooth the transition into the throat of the carburetor thus allowing you to make more power. The base and lid are finished in clear anodize for durability while retaining the high tech spun aluminum look. The base drops 1-5/8" below the throat of the carb and the overall height is only 2-5/8" above the throat. Includes a 14" x 4" cleanable and re-usable element, 1/4"-20 x 4.5" air cleaner stud and wing nut. Add a JEGS billet aluminum round or hex style air cleaner nut with o-ring seal to provide the finishing touch to your new air cleaner. Made in USA.