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  • K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
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K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
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K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height

K&N Engineering
knnRX-4130-1
Out of stock
Air Filters
$125.99
The K&N Engineering Universal X-Stream Top Clamp-On Air Filter is designed to enhance engine performance by...
K&N Engineering Universal X-Stream Top Clamp-On Air Filter - 3.5 Inch Flange ID, 4 Inch Outer Diameter, 5.75 Inch Height
Description

The K&N Engineering Universal X-Stream Top Clamp-On Air Filter is designed to enhance engine performance by increasing airflow and filtration efficiency. Featuring a unique filter-within-a-filter design, this air filter provides extra filter surface area, which results in higher airflow capacity and extended service intervals. Its innovative construction ensures maximum filtration while maintaining optimal airflow, making it suitable for demanding racing environments and high-performance applications. Constructed with durable, molded pliable rubber flanges, the filter absorbs vibrations and guarantees a secure fit. The flanges can also be stretched up to 1/16 inch (1.5 mm), allowing for flexible installation in between sizes. This reusable, washable filter is built to withstand rigorous conditions, offering long-term performance and reliability. The K&N X-Stream Top Air Filter is an excellent choice for automotive enthusiasts seeking enhanced airflow and filtration efficiency without compromising durability. Its design promotes consistent performance, making it ideal for both racing and everyday driving where high airflow and filtration are critical. The product complies with Prop 65 regulations, ensuring safety and quality standards are met. Compatible with various vehicles, this filter offers an easy upgrade to existing intake systems, delivering noticeable performance improvements. Trust K&N Engineering to provide premium quality filters built with precision engineering and superior materials for maximum engine protection and efficiency.

Features:

  • Innovative filter-within-a-filter design for increased airflow and longer service intervals
  • Constructed with durable, molded pliable rubber flanges that absorb vibrations and ensure a secure fit
  • Flanges can be stretched up to 1/16 inch (1.5 mm) for flexible installation in-between sizes
  • Washable and reusable for long-term cost savings and environmental benefits
  • Designed for high-performance applications, including racing and demanding environments
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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.

Returns

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).

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