★★★★★ 5
Great fit
Fit perfectly.
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Reviewed in the United States on February 9, 2026
K&N 11" OD x 5" H Custom Air Filter Assembly - High-Performance
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N 11" OD x 5" H Custom Air Filter Assembly - High-PerformanceProduct Overview Enhance your vehicle's engine performance with the K&N Custom Air Filter Assembly, engineered for superior airflow and filtration efficiency. Featuring an 11" outer diameter and 5" height, this assembly is perfect for high performance applications. The innovative X Stream top design significantly increases filter surface area by redirecting airflow through the side pleats, maximizing air intake. This design is integral for boosting
Quick Dispatch:
Your K&N 11" OD x 5" H Custom Air Filter Assembly - High-Performance orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your K&N 11" OD x 5" H Custom Air Filter Assembly - High-Performance ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.6 ★★★★★
Based on 508 reviews
Sort
Product Reviews
★★★★★ 5
Great filter
Works fine didnt have to pay for the shop to put it in so great savings.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
★★★★★ 5
DIY, super easy to replace.
Fit 2018 crv. I like to change out my air filters before taking my car to the dealership for an oil change. Saves a ton of money to DIY. Easy to do perfect fit.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Ok
Ok
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Reviewed in the United States on May 3, 2026
★★★★★ 5
make sure you get the right one for your model and engine
Fit was perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
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