Outerwears Air Filter Pre-Filter Assembly - 14" x 5" Element - Black 11002PRB MSD needed an HEI Cap

MSD needed an HEI Cap and Rotor that could withstand the high output

Standard to Trunk Mount

1972-1980 Chevrolet Impala

They include internal gussets for additional strength

Outerwears Air Filter Pre-Filter Assembly - 14" x 5" Element - Black 11002PRB MSD needed an HEI CapPre Filters unique polyester material contains uniform, micron sized openings to allow air in while filtering out the grime that will eventually clog an air filter or breather. Founded 45 years ago, Outerwears was created to fulfill a desperate need to keep the Air filter and engine clean during off road racing. Racers and engine builders were experiencing loss of horsepower and engine damage due to sand, dirt, and other debris prematurely packing