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Feuling Parts BA Race Series Air Cleaner Kit with Red Filter – Part Number 5421
Regular price $649.95 USD
Category:
BA Race Series Air Cleaner Kit - Raw - Red Filter
The Feuling Parts BA Race Series (RS) air cleaner kit, part number 5421, is engineered for optimal performance on Harley-Davidson motorcycles, particularly those with modified or ported engines. Originally designed for our 130 Bagger GP race engine, this air cleaner features a compact height that is just under one inch taller than standard models, providing an impressive 33% increase in filter surface area. This expanded filter capacity delivers higher airflow and improved filtration efficiency, translating into notable horsepower and torque gains across a wide range of engine configurations. Its design enhances engine breathing, lengthening intake runners and increasing air velocity for a balanced and dynamic airflow, which supports better throttle response and overall engine performance.
Features:
- Designed for Harley-Davidson motorcycles with OEM-style cylinder head breathing and intake routing
- 33% larger filter surface area for increased airflow and filtration efficiency
- Impressive horsepower and torque gains, especially on engines with modified or ported cylinder heads
- Enhanced intake flow with lengthened runners and increased air velocity for balanced performance
- One-piece billet cage construction for durability and easy installation
- High flow velocity stack with optimal opening diameter, outer lip, and internal taper for maximum air intake
- Washable and reusable air filter with a 3.335-inch diameter for long-term use
- Simplified bolt-on design for quick installation and a clean aesthetic
- Made in the USA, ensuring quality craftsmanship and materials





