The HPS Performance air filter with 4" ID has a 9" element and an overall length of 10.75" (part # HPS-4301).
It is constructed from two layers of woven cotton, dressed with synthetic oil, and encased in a steel mesh.
This design allows for plenty of fresh air to maximize performance while trapping dirt and debris from damaging the engine.
All HPS Performance air filters are designed with performance in mind, manufactured in the USA by Green Filter, and backed by HPS One-Year Limited Warranty.
Air filter shape and style: round tapered universal air filter.
Air filter construction: two layers of woven cotton.
Reusable and washable.
Flange inside diameter: 4" (102mm).
Element length: 9" (229mm).
Base outside diameter: 6" (152mm).
Top outside diameter: 4-1/2" (114mm).
Flange length: 1-3/4" (45mm).
Overall length: 10-3/4" (273mm).
End cap material: rubber (urethane).
The specially formulated lightweight synthetic oil creates an ionic bond with the filter's stainless steel mesh, attracting and trapping dirt onto the mesh while creating a clear path for airflow.
It will not affect or damage sensors.
The stainless steel mesh reinforcement delivers higher resistance to dents compared to aluminum mesh.
Low pressure injection molding minimizes seepage of rubber onto the filter element and increases airflow by up to 25% compared to high pressure molding.
Manufactured in the USA by Green Filter, the leading manufacturer of world-class filters used by many renowned racing engineers, engine builders, drivers, and enthusiasts who regularly win on Sunday.