
Air Filter Housing 4 in W/Filter combines an enclosed inline airbox with a performance filter, giving custom intake builders a cleaner way to remotely position the filter and route cooler outside air toward the engine. Moving the filter away from crowded or high-heat areas can make packaging easier while helping isolate the intake from under-hood heat.
Spectre inline airboxes use a polished aluminum housing and a low-restriction HPR filter element. The HPR filter is serviceable, washable and pre-oiled, so the housing can stay in place while the filter is maintained as part of the intake system.