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The K&N X-Stream Top Assembly (Part Number: knn66-3010) enhances your vehicle's air intake system by providing increased filter surface area and improved airflow dynamics. Designed to redirect airflow inside the filter, it pulls in more air through the side pleats, which results in better performance efficiency and optimal engine breathing. This assembly is built to be cleanable and reusable, allowing for longer service intervals and consistent filtration performance. Its durable construction ensures protection for your engine while maintaining high airflow rates during demanding driving conditions.
The X-Stream Top Assembly features a 14-inch outer diameter and a 5.125-inch neck flange, which makes it compatible with a variety of aftermarket and OEM intake systems. Its design includes a vent to facilitate airflow regulation and enhance overall engine efficiency. This part is particularly suitable for enthusiasts seeking to maximize airflow and filtration capacity without sacrificing protection. The assembly*s robust build quality supports repeated cleaning and reuse, making it a cost-effective choice for long-term vehicle maintenance.
Please note that this product is not CARB approved and requires acknowledgment of CARB regulations if applicable. It is not authorized for use in California emissions-compliant vehicles but offers superior filtration and airflow benefits for other applications. The assembly's prop 65 compliance indicates it meets safety standards for chemical exposure. Whether upgrading a stock system or customizing a high-performance setup, the K&N X-Stream Top Assembly provides an excellent solution for enhanced engine airflow and filtration efficiency.
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).
