Outerwears Air Filter Pre-Filter Assembly - 14" x 6" Element - Blue 931012 Designed to be used on

Designed to be used on engines with a 20mm x 1

2010-2017 GMC Sierra 1500 78

Simply drill the correct size hole

With Momentary Actuator Button

Outerwears Air Filter Pre-Filter Assembly - 14" x 6" Element - Blue 931012 Designed to be used onOuterwears 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