Pre-Filter Black 7-1/4 W x 17-3/4 L x 4-3/8in H

The Outerwears Pre-Filter Black 7-1/4 W x 17-3/4 L x 4-3/8in H is an essential air intake protection component designed for serious off-road enthusiasts and high-performance builders who demand maximum engine cleanliness in extreme conditions. This pre-filter wrap serves as a first-stage defense system, capturing larger airborne particles before they reach your primary air filter element. Whether you're running a modified intake on your truck, buggy, or performance vehicle, this rectangular pre-filter addresses the critical gap left by stock filtration in dusty, sandy, or debris-laden environments where engine longevity depends on aggressive air management.

Constructed from durable polyester material with professional black finish, the Outerwears pre-filter wrap measures 17.75 inches long by 7.25 inches wide by 4.375 inches tall, engineered to fit standard rectangular filter housings and custom intake configurations. The polyester construction provides exceptional airflow while maintaining structural integrity under sustained high-velocity air pressure, preventing bypass and ensuring every grain of dust is trapped at the pre-filter stage rather than compounding main filter load. The design allows for easy installation atop your existing filter assembly, and the polyester material delivers washable, reusable filtration that reduces long-term maintenance costs compared to disposable filter wraps while maintaining consistent intake efficiency across extended service intervals.

This pre-filter excels in applications ranging from desert racing and trail environments to high-performance street builds where non-OEM intake manifolds benefit from enhanced particle interception. Engine builders and off-road mechanics routinely specify Outerwears pre-filters to extend primary filter life by 2-3x, reducing teardowns and rejetting cycles on carbureted or turbocharged platforms. Installation is straightforward—the wrap simply positions over your existing air filter element, securing with the factory retaining hardware—making it compatible with virtually any rectangular filter setup without modification to intake ducting or mounting geometry.