Breather passages exit at the mouth of the carburetor/throttle body, creating a virtually closed-loop system Includes a high-flow filter and accepts 93-15 oval or round OEM outer cover (unless noted) Feature a one-piece aluminum backing plate/carb support bracket All necessary hardware and instructions are included with each kit Eliminate the need for banjo fittings, hoses and filter. STG 1 AIR FLTR 99-01 EFI