3.5in. Oval Pre-Filter Black

The 3.5in. Oval Pre-Filter Black from Outerwears is a precision-engineered air intake wrap designed to protect engine air filters from dust, dirt, and debris in high-performance and off-road applications. Built for serious mechanics and automotive enthusiasts who demand reliability under extreme conditions, this pre-filter acts as the first line of defense for your engine's breathing system. Whether you're running a modified street engine, a track-focused build, or a truck tackling dusty terrain, this oval pre-filter extends filter life while maintaining optimal airflow to your combustion chamber.

Constructed from durable polyester material with the Outerwears signature design, this 13-inch-long oval pre-filter measures 5 inches in width and 3.5 inches in height, providing wraparound coverage for standard oval air filter elements. The polyester construction delivers excellent filtration efficiency while remaining washable and reusable—a cost-effective solution that reduces the frequency of main filter replacement. The black finish resists UV damage and maintains appearance through multiple cleaning cycles, while the engineered weave pattern traps larger particulates before they reach your primary air filter, significantly extending filter intervals on vehicles operated in sandy, dusty, or high-pollen environments.

This pre-filter is ideal for mechanics building custom air intake systems, vintage hot rods, lifted trucks, and motorsports platforms where air quality directly impacts engine longevity and performance. Installation is straightforward—simply position the wrap around your existing oval air filter element and secure as recommended by your filter manufacturer. The compact weight of 0.04 lbs ensures zero performance penalty, making it compatible with virtually any engine management calibration. For serious builders prioritizing engine protection without sacrificing intake efficiency, the Outerwears 3.5in. Oval Pre-Filter Black delivers proven protection at a practical price point.