UNI FILTER Foam Filter - Red BF-5

If you're building a custom or vintage air intake system, you need a filter solution that matches your fabrication—not one that forces you to adapt. The UNI FILTER Foam Filter Red BF-5 gives you sheets of varying foam densities to design and cut an air filter that fits your exact specifications and engine requirements. This is the go-to choice for builders who refuse to compromise on fitment or airflow characteristics.

UNI's foam construction offers excellent filtration efficiency while maintaining the low restriction needed for naturally aspirated and mild forced-induction applications. Whether you're restoring a classic, constructing a custom intake manifold, or experimenting with filter geometry, these pre-cut foam sheets eliminate the guesswork and let you build precisely what your engine needs.

• Multiple foam densities
• Fabrication-grade material
• Universal fitment application
• Custom sizing capability
• High filtration efficiency
• Low restriction design
• Vintage-compatible construction
• Professional-grade foam sheets
• MPN: BF-5
• Suitable for custom intakes