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Upgrade your BMW X3 or X4 with the K&N Replacement Air Filter Part Number knn33-2465, designed to enhance airflow and engine performance. Crafted from layered, oiled cotton media, this high-flow air filter improves horsepower and acceleration while providing superior engine protection. Its advanced design captures contaminants effectively, ensuring your engine runs smoothly and efficiently. This filter is a direct drop-in replacement for your factory air box, making installation quick and straightforward without the need for modifications or special tools. K&N's durable construction means the filter is washable and reusable, offering a long-lasting solution that can be cleaned and reused throughout your vehicle's lifespan, backed by a 10-Year/Million Mile Limited Warranty. This product is engineered to deliver consistent performance and reliability, making it a popular choice among automotive enthusiasts who seek to maximize their vehicle's potential. Whether you're on the road or at the track, the K&N High-Flow Air Filter ensures your engine breathes easier, translating into improved throttle response and overall driving experience. Compatible with 2011 through 2015 BMW X3 and X4 models equipped with a 3.0L L6 engine, this filter is an essential upgrade for those looking to boost their vehicle's efficiency and power while maintaining optimal engine protection.
Features:
Fitment:
2011 BMW X3 xDrive28i
2011 BMW X3 xDrive35i
2012 BMW X3 xDrive28i
2012 BMW X3 xDrive35i
2013 BMW X3 xDrive28i
2014 BMW X3 xDrive28i
2015 BMW X3 sDrive28i
2015 BMW X3 xDrive28d
2015 BMW X3 xDrive28i
2015 BMW X4 xDrive28i
2016 BMW X3 sDrive28i
2016 BMW X3 xDrive28d
2016 BMW X3 xDrive28i
2016 BMW X4 xDrive28i
2017 BMW X3 sDrive28i
2017 BMW X3 xDrive28d
2017 BMW X3 xDrive28i
2017 BMW X4 M40i
2017 BMW X4 xDrive28i
2018 BMW X4 xDrive28i
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.
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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).
