K&N Engineering
K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in H - RX-4140
- SKU:
- KNNRX-4140
- UPC:
- 024844043238
- MPN:
- RX-4140
- Availability:
- Regularly stocked product
Description
How do I confirm if the K&N Universal X-Stream Clamp-On air filter will fit my vehicle?
Consult the K&N Engineering vehicle fitment guide online to verify compatibility for your specific make, model, and year.
What is the installation difficulty for the K&N Universal X-Stream Clamp-On air filter?
Achieve a significant performance upgrade with easy installation, designed for seamless integration onto your vehicle's intake system.
The K&N Universal X-Stream Clamp-On air filter delivers a significant performance upgrade, rated 9/9 for Street Performance. Featuring the innovative filter-within-a-filter top design, it maximizes airflow and superior filtration. Install this high-performance air filter with confidence for an immediate surge in horsepower and throttle response.
Key Features
- XStream Top Universal Air Filters
- filter within the filters top
- higher air flow
- longer service interval
- awesome air flow
- outstanding filtration
Why Choose the KN Universal X-Stream Clamp-On
Delivers maximum airflow for an immediate surge in horsepower and throttle response.
Achieves superior filtration, protecting your engine from harmful contaminants.
Provides extended service intervals, meaning less maintenance and more driving time.
Transforms your engine's breathing for a noticeably more aggressive and powerful sound.
Who Is This For?
Street Performance — 9/10
Higher air flow for significant performance upgrade.
Engine Performance — 9/10
Higher air flow for significant performance upgrade.
Track / Autocross — 8/10
Higher air flow for performance upgrade.
Racing Competition — 8/10
Higher air flow for performance upgrade.
Drag Racing — 8/10
Higher air flow for performance upgrade.
Daily Driving Comfort — 7/10
Outstanding filtration and longer service interval.
Frequently Asked Questions
How do I confirm if the K&N Universal X-Stream Clamp-On air filter will fit my vehicle?
Confirm fitment with your vehicle by cross-referencing your specific make, model, and year with K&N's comprehensive compatibility database. This universal air filter is designed for broad application, ensuring a precise fitment when matched correctly. Trust the exact fitment confirmation for optimal integration.
What is the installation difficulty for the K&N Universal X-Stream Clamp-On air filter?
Installation of the K&N Universal X-Stream Clamp-On air filter is straightforward and rated as universal. Its clamp-on design simplifies the process, allowing for a quick and easy upgrade. Expect a hassle-free installation experience with this universal fitment.
What performance upgrade can I expect from the K&N Universal X-Stream Clamp-On air filter?
Experience a significant performance upgrade with higher air flow, scoring a 9 out of 10 for Street Performance and Engine Performance use cases. This air filter is engineered to enhance your engine's breathing capabilities dramatically. Achieve your desired performance goals with this direct airflow enhancement.
What makes the K&N Universal X-Stream Clamp-On air filter's filtration superior?
Achieving superior filtration, the K&N Universal X-Stream Clamp-On air filter utilizes a multi-layer design with a filter within its top. This advanced construction effectively traps harmful contaminants, protecting your engine. Drive with confidence knowing your engine receives the cleanest possible air intake.
Important Notices
⚠️ CARB Notice: This product is NOT legal for street use in California under CARB (California Air Resources Board) regulations. For off-road or race use only.
⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Browse More: Shop All Air Filters - Universal Fit — Air Filters
Additional Information
CARB: |
This product is not CARB Legal and not for sale in California |
Clearance Item: |
N |
MPN: |
RX-4140 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Air Filters>Air Filters - Universal Fit |
Universal Fitment: |
Y |
Install Type: |
Universal Fit |
Product Level: |
Premium Performance |
Street Performance: |
9/10 |
Engine Performance: |
9/10 |
Track / Autocross: |
8/10 |
Racing Competition: |
8/10 |
Drag Racing: |
8/10 |
Daily Driving Comfort: |
7/10 |
Related Products
Related Products
K&N Universal X-Stream Clamp-On Air Filter 3.5in Flg ID/4in OD/5.75in H - RX-4130-1
K&N Engineering
K&N Filter Universal X Stream Clamp-On 2.438in Flange ID x 4.5in Base OD x 4in Top OD x 6.563in H - RX-3800
K&N Engineering
K&N Filter Universal X Stream Clamp-On Round Straight 3in Flange ID / 5in OD / 7in Height - RX-2820
K&N Engineering
K&N Universal Clamp-On Air Filter 4in FLG / 6in B / 4in T / 7in H - RU-4680
K&N Engineering
K&N Universal Clamp-On Air Filter 3.5in Flg ID x 8.5x5.25in B OD x 6.25x4in T OD x 5.5in H - RU-5040
K&N Engineering