Outerwears Air Filter Pre-Filter Assembly - 14" x 3" Element - Purple Line Clamp Soft Knit Nomex inner lining

Soft Knit Nomex inner lining for comfort and fire protection

It is pre-drilled with the standard 6-bolt pattern

Measures 9/16" nominal height of adapter only

2003-2004 GMC Envoy XL

Backed by Flowmaster's Lifetime Limited Warranty

Outerwears Air Filter Pre-Filter Assembly - 14" x 3" Element - Purple Line Clamp Soft Knit Nomex inner liningOuterwears 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