★★★★★ 5
Hose
Great custom fit
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Reviewed in the United States on November 17, 2020
K&N Custom Air Filter 14in OD / 12in ID / 6in Height
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Custom Air Filter 14in OD / 12in ID / 6in HeightK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your
Quick Dispatch:
Your K&N Custom Air Filter 14in OD / 12in ID / 6in Height 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 Custom Air Filter 14in OD / 12in ID / 6in Height 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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4.0 ★★★★★
Based on 1665 reviews
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Product Reviews
★★★★★ 3
Didn’t fit but I made it fit.
The part appears decently made in China. The end that terminates below the oil filter would not mount (too tight). I gently sanded the o-ring groove, lubricated and I put the part in freezer. After two hours of sanding the groove I got the part seated. Good thing I was patient today. Pain in the butt.
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Reviewed in the United States on December 12, 2020
★★★★★ 5
Highly recommend
Perfect fit for my Mercedes C300 V6
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Reviewed in the United States on March 1, 2026
★★★★★ 5
good quality
easy to install, works great , good value
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Great price Great product
Great price Great product
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Reviewed in the United States on February 27, 2026
