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The K&N Engineering Part Number knn56-9320 is a high-performance custom racing air filter designed specifically for single or two-barrel carburetors. Featuring a round tapered shape, this assembly enhances airflow efficiency to your carburetor, which can lead to improved engine power and responsiveness. The filter incorporates a durable chrome top and base plates that not only provide structural integrity but also add a sleek, polished look to your engine bay. The iconic K&N washable high-flow filter element ensures long-lasting performance and easy maintenance, allowing you to clean and reuse it multiple times for sustained optimal airflow.
Built to withstand the rigors of racing and high-performance applications, this assembly is engineered for reliability and consistent airflow. The assembly's compact design with a 1.375-inch neck flange and 2.25-inch overall height makes it suitable for a range of custom setups. The assembly is not carb approved, so it is recommended for off-road or racing use only. Its construction helps keep dirt and debris outside, protecting your engine while maximizing airflow. The assembly's aesthetic appeal is complemented by its chrome top and base plates, making it an attractive addition to any high-performance engine setup. Whether upgrading your existing system or building a custom race engine, this K&N air filter assembly offers a combination of performance, durability, and style.
Designed for professional and enthusiast use, this part adheres to strict quality standards. The assembly is lightweight and easy to install, making it a practical choice for various automotive projects. It is not intended for carburetor emissions compliance, but it is ideal for racing, off-road, and other performance-oriented applications where maximizing airflow is critical.
Features:
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
