Outerwears Air Filter Pre-Filter Assembly - 14" x 4" Element - Red 2010174 These include Formula 1

These include Formula 1

NOTE: On engines that use a two piece dipstick tube

Whether your cherished truck is powered by a Chevy small block

and is available in a variety of colors

Cadillac: Escalade EXT 07 - 13 6

Outerwears Air Filter Pre-Filter Assembly - 14" x 4" Element - Red 2010174 These include Formula 1Pre 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