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. Includes a cleanable and re-usable element, 1/4"-20 air cleaner stud and wing nut.