Upgrade your engine's performance with the K&N RC-2900 Universal Air Filter featuring a 54mm flange. This versatile air filter is expertly designed for a wide range of applications, ensuring you have the right fit for your equipment regardless of the angle or offset of your air intake. With K&N's reputation for quality, you can trust this filter to deliver optimal airflow and enhance your vehicle's efficiency. Constructed with ultra-strong molded pliable rubber flanges, the K&N RC-2900 absorbs vibrations and allows for a secure attachment. This filter can even stretch up to 1/8 inch (3mm) to accommodate in-between sizes, making it an ideal choice for custom setups. Available in various configurations including round, straight, tapered, and oval designs, this air filter provides the perfect solution for your air intake needs. Features: * Universal fit: Designed for a wide variety of applications. * Durable construction: Made with ultra-strong molded pliable rubber. * Vibration absorption: Flanges absorb vibrations for secure attachment. * Stretchable design: Can stretch up to 1/8 inch (3mm) for versatile fitting. * Multiple designs available: Offered in round, straight, tapered, and oval shapes.