FEULING OIL PUMP CORP. BA Series Air Cleaner Kit - Raw - Black Filter 5531

If you're running modified cylinder heads, ported intakes, or larger throttle bodies, your stock air cleaner is costing you power. The Feuling BA Series delivers measurable horsepower and torque gains by optimizing intake velocity and volume—especially critical on built engines where airflow becomes the limiting factor. The one-piece billet design bolts on cleanly without the complexity of traditional stacked constructions, getting you on the dyno faster.

Developed and flow-bench tested, this kit combines lengthened intake runners with a high-flow billet aluminum velocity stack to create balanced, efficient airflow at all RPM ranges. The convertible backing plate gives you the flexibility to route or block cylinder head breathing based on your specific engine setup, while the included washable reusable filter keeps your operating costs down across multiple seasons.

• One-piece billet construction
• Lengthened intake runners
• High-flow velocity stack
• Optimized vent hole locations
• Convertible backing plate
• 2.5" washable air filter
• Billet filter cage
• OEM-style breathing routing
• Flow bench developed
• Dyno-tested
• Made in USA
• Bolt-on installation
• MPN: 5531