K&N Engineering
K&N Filter Universal X Stream Clamp-On 3 inch Flange 6 inch Base 5 inch Top 5 9/16 inch Height - RX-4990
- SKU:
- KNNRX-4990
- UPC:
- 024844094773
- MPN:
- RX-4990
- Availability:
- Regularly stocked product
Description
How often should I clean and service my K&N air filter?
K&N XStream Universal Air Filters are designed for extended performance, allowing for longer intervals between cleaning and servicing. Specific intervals depend on driving conditions.
What is the airflow rating of this K&N air filter?
Achieve higher air flow for superior engine performance with K&N's innovative filter design, significantly boosting your vehicle's power output.
The K&N Universal X-Stream Clamp-On air filter is engineered for your 2005 Ford Focus, delivering exhilarating throttle response and noticeable power gains, scoring an 8 for street performance. Its innovative XStream top design incorporates more filter media within the filters top for higher air flow. Experience superior engine protection and extended performance between maintenance intervals with this premium universal fit air filter.
Key Features
- XStream Top Universal Air Filters
- filter within the filters top adding more filter area
- higher air flow
- longer service interval
- awesome air flow
- outstanding filtration
Why Choose the KN Universal X-Stream Clamp-On
Delivers exhilarating throttle response and noticeable power gains for a more engaging drive.
Achieves superior engine protection with advanced filtration, keeping your engine running cleaner.
Provides extended performance between maintenance, meaning less downtime and more time on the road.
Transforms your driving experience with unrestricted airflow for peak engine efficiency.
Who Is This For?
Street Performance — 8/10
Higher air flow for superior engine performance.
Track / Autocross — 8/10
Higher air flow for superior engine performance.
Racing Competition — 8/10
Higher air flow for superior engine performance.
Engine Performance — 9/10
Achieves higher air flow for superior engine performance.
Visual / Aesthetic Upgrade — 7/10
Premium performance product implies aesthetic appeal.
Easy DIY Install — 7/10
Universal fitment suggests straightforward installation.
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-4990 |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Air Filters>Air Filters - Universal Fit |
Install Type: |
Universal Fit |
Product Level: |
Premium Performance |
Street Performance: |
8/10 |
Track / Autocross: |
8/10 |
Racing Competition: |
8/10 |
Engine Performance: |
9/10 |
Visual / Aesthetic Upgrade: |
7/10 |
Easy DIY Install: |
7/10 |
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