FEULING OIL PUMP CORP. BA Series Air Cleaner Kit - Raw - Red Filter 5431

If you're running modified cylinder heads, ported intakes, or larger throttle bodies, your engine is starving for air—and the Feuling BA Series Air Cleaner Kit delivers it. This one-piece design outflows traditional multi-stack assemblies, translating to measurable horsepower and torque gains across the RPM range. Built on the flow bench and dyno-tested, it's engineered for real-world performance, not marketing promises.

The lengthened intake runners create optimized air velocity while the high-flow billet aluminum velocity stack maintains balanced dynamic flow at any load. Whether you're building a mild street engine or pushing a fully ported head, this kit adapts to your setup with a convertible backing plate that offers optional cylinder head venting. The included washable, reusable air filter and one-piece billet cage eliminate the maintenance hassle of disposable elements.

• One-piece billet design
• Lengthened intake runners
• High-flow velocity stack
• Optimized vent hole locations
• Convertible backing plate
• 2.5" washable filter
• Reusable billet cage
• Flow bench designed
• Dyno-tested performance
• Made in USA
• MPN: 5431