K&N X-Stream Top Assembly — 14in OD, 5.125in Neck, 3.063in H Universal Air Filter

SKU: KNN66-3040
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About K&N Engineering K&N has been the world's leader in ...Read More

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Sale price$199.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N X-Stream Top Assembly: Enhanced Airflow & Filtration

Upgrade your air filtration system with the K&N X-Stream Top Assembly (Part No. 66-3040), a universal fit air filter designed to significantly boost both airflow and engine protection. This innovative assembly features a 14-inch outer diameter, a 5.125-inch neck flange, and a 3.063-inch height, making it a versatile choice for various applications.

Revolutionary Design for Superior Performance

The K&N X-Stream Top isn't just about adding filter area; its unique design actively redirects airflow inside the filter. This intelligent engineering pulls in more air through the side pleats, enhancing performance efficiency and ensuring your engine receives a greater volume of clean, cool air. Like all K&N filters, it's cleanable and reusable, offering long-term value and exceptional filtration. The X-Stream Air Flow Top delivers the best protection available for your engine, ensuring longevity and consistent performance. Discover K&N's advanced filtration solutions at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N X-Stream Top Assembly: Enhanced Airflow & Filtration

Upgrade your air filtration system with the K&N X-Stream Top Assembly (Part No. 66-3040), a universal fit air filter designed to significantly boost both airflow and engine protection. This innovative assembly features a 14-inch outer diameter, a 5.125-inch neck flange, and a 3.063-inch height, making it a versatile choice for various applications.

Revolutionary Design for Superior Performance

The K&N X-Stream Top isn't just about adding filter area; its unique design actively redirects airflow inside the filter. This intelligent engineering pulls in more air through the side pleats, enhancing performance efficiency and ensuring your engine receives a greater volume of clean, cool air. Like all K&N filters, it's cleanable and reusable, offering long-term value and exceptional filtration. The X-Stream Air Flow Top delivers the best protection available for your engine, ensuring longevity and consistent performance. Discover K&N's advanced filtration solutions at GGCRACING.

Product Details

Product Description

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N X-Stream Top Assembly: Enhanced Airflow & Filtration

Upgrade your air filtration system with the K&N X-Stream Top Assembly (Part No. 66-3040), a universal fit air filter designed to significantly boost both airflow and engine protection. This innovative assembly features a 14-inch outer diameter, a 5.125-inch neck flange, and a 3.063-inch height, making it a versatile choice for various applications.

Revolutionary Design for Superior Performance

The K&N X-Stream Top isn't just about adding filter area; its unique design actively redirects airflow inside the filter. This intelligent engineering pulls in more air through the side pleats, enhancing performance efficiency and ensuring your engine receives a greater volume of clean, cool air. Like all K&N filters, it's cleanable and reusable, offering long-term value and exceptional filtration. The X-Stream Air Flow Top delivers the best protection available for your engine, ensuring longevity and consistent performance. Discover K&N's advanced filtration solutions at GGCRACING.

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