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Upgrade your vehicle's airflow with the K&N Engineering Custom Air Filter Part Number knnE-3402. Designed with a layered, oiled cotton media, this high-flow air filter improves engine breathing and increases horsepower. Its state-of-the-art design ensures maximum filtration efficiency while allowing for greater airflow, leading to improved engine performance and responsiveness. This washable and reusable filter is engineered to last for the entire lifespan of your vehicle, providing long-term value and reliable protection for your engine.
Installation is straightforward, as the K&N drop-in replacement fits seamlessly into your factory air box. The durable construction and quality materials ensure that the filter maintains optimal airflow over time, even after multiple cleanings. Backed by K&N*s 10-year/1 million mile limited warranty, this filter offers a combination of performance, durability, and peace of mind.
Designed for automotive applications, this filter is not only easy to install but also provides an increase in horsepower without compromising engine protection. Whether you*re upgrading for better performance or replacing a worn filter, the K&N Custom Air Filter is an excellent choice for drivers seeking superior airflow and engine efficiency. Enhance your vehicle*s performance today with this high-quality, reusable air filter from K&N Engineering.
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).
