Outerwears Air Filter Pre-Filter Assembly - 14" x 6" Element - Blue 931012 Simply drill the correct size

Simply drill the correct size hole

1980-1985 Oldsmobile Cutlass

Ford Fullsize Car 1957-68

50 in OD Tube

2010-2017 GMC Sierra 1500 78

Outerwears Air Filter Pre-Filter Assembly - 14" x 6" Element - Blue 931012 Simply drill the correct sizeOuterwears 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 (clogging) the filter and often passing through the filter into the engine. Filters loading up with dirt meant loss of horsepower and in many cases loss of a race. Race crews were noticing severe engine