Wix Engine Air Filter — Racing 4.05" H, 11.625" ID, High-Efficiency Low-Restriction

WIX 42096R is a purpose-built high-efficiency endurance engine air filter engineered for dirt-track and off-road racing that balances strong particulate capture with low airflow restriction.

Designed for late-model, sportsman and modified racers who primarily compete on dirt or clay surfaces, the WIX 42096R combines performance media with protective metal screens and molded seals to deliver consistent engine breathing lap after lap. Its construction aims to keep abrasive dust and grit away from the intake while maintaining a Frazier airflow around 73 CFM—helpful for preserving power in demanding conditions. The filter's dimensions (4.05" height, 11.625" inside diameter, 13.875" outer diameter) make it compatible with many racing intake housings that require a dependable, low-restriction element.

How does this filter improve airflow without sacrificing protection?

The 42096R uses a high-performance filtration media formulated to allow robust airflow while still capturing harmful particulates common on dirt tracks. That balanced design trims restriction so the engine receives steady air volume, helping maintain throttle response under load.

• Frazier airflow approximately 73 CFM for effective breathing.
• Media engineered for low restriction with particulate capture.
• Suitable for high-dust racing environments where airflow matters.

What construction features make the WIX 42096R durable for off-road racing?

Durability comes from a multi-layer assembly: an expanded metal outer screen protects the media from impacts and debris, while an epoxy-coated steel inner screen prevents media collapse and corrosion. Molded plastisol end caps ensure a secure seal against the intake housing to prevent bypassing unfiltered air.

• Outer expanded metal screen shields media from rocks and debris.
• Inner epoxy-coated steel wire maintains element stability and resists degradation.
• Molded plastisol top and bottom provide precise, reliable sealing.

Will this filter fit my racing setup, and what are the exact dimensions?

The WIX 42096R is dimensioned to fit intake housings that accept its specific measurements: 4.05 inches in height, an 11.625-inch inside diameter, and a 13.875-inch outer diameter. Confirm your intake opening and housing clearance to ensure a proper fit before purchasing.

• Height: 4.05" — compact profile for tight housings.
• Inside diameter: 11.625" — fits compatible flanges and adapters.
• Outer diameter: 13.875" — overall envelope including outer screen.

How should racers maintain the WIX 42096R for consistent performance?

Regular inspection and cleaning keep the filter operating as designed. Remove coarse debris after events, follow WIX or racing-series guidelines for cleaning media, and inspect the plastisol seals and metal screens for damage before reuse.

• Inspect for tears, dents, or compromised seals after each race.
• Use recommended cleaning procedures for the media type; avoid harsh chemicals that degrade seals.
• Replace the element if the media or screens show permanent damage.

Who is this for: The WIX 42096R is aimed at competitive dirt, clay and off-road racers—late model, sportsman and modified classes—who need a rugged, high-flow filter element that minimizes restriction while offering strong particulate control. It's a practical choice for race teams and drivers who demand repeatable air delivery and a secure seal in dusty, abrasive environments. If you run primarily on paved tracks or require a different size, check WIX's catalog for alternate part numbers tailored to your application.