Fits Evolution Big Twin, Evolution Sportster and Twin Cam 88 models equipped with Keihin CV carburetor and Delphi fuel injection equipped Twin Cam 88 models. This aluminum backing plate has an integrated velocity stack, providing a better airflow for increased horsepower and torque through the entire RPM range. Kit includes low restriction air cleaner element, gasket, and all required mounting hardware.
Note: Must be used with OEM round or oval air cleaner cover and air cleaner support bracket.
