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Upgrade your vehicle's airflow with the K&N Engineering E-3952 high-flow air filter, designed to deliver increased horsepower and engine protection. This washable, reusable filter features a state-of-the-art layered, oiled cotton media engineered to optimize airflow while effectively capturing contaminants. Its drop-in replacement design ensures a straightforward installation into your factory air box, making it an easy upgrade for enhanced performance. Crafted to last for the entire lifespan of your vehicle, the E-3952 filter is backed by K&N's 10-Year/Million Mile Limited Warranty, providing peace of mind and reliable performance over time.
Constructed to improve engine efficiency, this filter helps maximize airflow, which can lead to noticeable gains in horsepower and throttle response. The durable materials and custom dimensions ensure a precise fit, maintaining optimal filtration and protecting your engine from harmful debris. Whether you*re seeking better acceleration or longer-lasting performance, this high-flow filter is an excellent choice for automotive enthusiasts and daily drivers alike.
Designed for ease of use, the K&N E-3952 fits seamlessly into your existing air box, requiring no additional modifications. Its washable and reusable design means you can clean and re-oil the filter multiple times, saving money and reducing waste over its lifetime. Compatible with various vehicle models, this filter is a reliable upgrade that combines superior airflow, enhanced engine protection, and long-term durability, making it one of K&N*s most popular products for automotive performance enhancement.
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).
