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The K&N Engineering Part Number KNNU-3570 is a versatile universal air filter designed for a wide range of applications including automobiles, racing vehicles, generators, snowmobiles, tractors, and radio-controlled cars. Crafted with a durable molded pliable rubber flange, this filter absorbs vibrations and ensures a secure fit, even allowing for up to 1/16 inch (1.5mm) of stretch to accommodate slightly varying sizes. Its robust construction makes it suitable for various angles and offset diameters of air intakes, providing reliable airflow management for your equipment.
Built to be washable and reusable, the K&N universal air filter offers long-term value and consistent performance. Its dimensions include a 3-inch flange diameter, with a base outer diameter of 5.125 inches and a top outer diameter of 5 inches, making it adaptable to many different systems. The filter's height is approximately 7.125 inches, providing ample surface area for air intake while maintaining a compact profile.
This filter is an excellent choice for enthusiasts and professionals seeking a dependable air filtration solution that combines flexibility, durability, and ease of maintenance. Whether you're upgrading a vehicle or customizing your equipment, the K&N universal rubber air filter ensures optimal airflow, enhancing engine performance and longevity. Designed with high-quality materials and engineered for a precise fit, it supports a wide array of vehicle models and machinery, making it a versatile addition to your maintenance toolkit.
Features:
Fitment:
2008 Dodge Caliber SRT-4
2008 Honda Accord EX
2008 Honda Accord EX-L
2008 Honda Accord LX
2008 Honda Accord LX-P
2008 Honda Accord LX-S
2008 Scion xB Base
2009 Dodge Caliber SRT-4
2009 Honda Accord EX
2009 Honda Accord EX-L
2009 Honda Accord LX
2009 Honda Accord LX-P
2009 Honda Accord LX-S
2009 Scion xB Base
2009 Toyota Matrix S
2009 Toyota Matrix XRS
2010 Honda Accord EX
2010 Honda Accord EX-L
2010 Honda Accord LX
2010 Honda Accord LX-P
2010 Honda Accord LX-S
2010 Scion xB Base
2010 Toyota Matrix S
2010 Toyota Matrix XRS
2011 Honda Accord EX
2011 Honda Accord EX-L
2011 Honda Accord LX
2011 Honda Accord LX-P
2011 Honda Accord LX-S
2011 Honda Accord SE
2011 Scion xB Base
2011 Toyota Matrix S
2012 Honda Accord EX
2012 Honda Accord EX-L
2012 Honda Accord LX
2012 Honda Accord LX-P
2012 Honda Accord LX-S
2012 Honda Accord SE
2012 Scion xB Base
2012 Toyota Matrix S
2013 Scion xB Base
2013 Toyota Matrix S
2014 Audi A4 Base
2014 Audi A5 Cabriolet
2014 Audi A6 Premium
2014 Audi A6 Premium Plus
2014 Scion xB Base
2015 Audi A4 Premium
2015 Audi A4 Premium Plus
2015 Audi A4 Prestige
2015 Audi A6 Premium
2015 Audi A6 Premium Plus
2015 Scion xB Base
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).
