★★★★★ 5
Love it
Style: Gloss Black Single Slat, Size: E90（2009-2011）
Worked great and looks awesome
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
K&N Filter 3 inch Flange 6 inch Base 5 Top 6 1/2 inch Height
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Filter 3 inch Flange 6 inch Base 5 Top 6 1/2 inch HeightSKU: RU 4730 UPC: 024844101938 K&N RU 4730 Universal Clamp On Air Filter 3 Inch Flange 6 Inch Base 5 Inch Top 6 1 2 Inch Height The K&N RU 4730 universal clamp on air filter delivers high airflow for racing vehicles generators snowmobiles tractors and passenger cars including Mitsubishi Eclipse BMW 3 Series Jeep Wrangler Chevrolet Cruze and more. With a 3 inch centered rubber flange 6 inch base diameter 5 inch top diameter and 6. 5 inch height it
Quick Dispatch:
Your K&N Filter 3 inch Flange 6 inch Base 5 Top 6 1/2 inch 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 Filter 3 inch Flange 6 inch Base 5 Top 6 1/2 inch 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]
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4.0 ★★★★★
Based on 1910 reviews
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Product Reviews
★★★★★ 5
Perfect OEM Fit in Seconds!
Style: Gloss Black Single Slat, Size: E46（1999-2002）2-Door, Style: Gloss Black Single Slat, Size: E46（1999-2002）2-Door
Perfect OEM Fit in 2 seconds!! I’m surprised and Happy and it looks Perfect on my BMW 2002 330ci
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
★★★★★ 3
Check engine light
Style: Gloss Black Single Slat, Size: G20（2019-2022）, Style: Gloss Black Single Slat, Size: G20（2019-2022）
Looks good but will throw a check engine light on your car. The fitment isn’t perfect causing the adaptive vents to show that they are failing even though they are not
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Quick fix
Style: Gloss Black Single Slat, Size: E46（2002-2005）4-Door
Easily Installed with no modification in under a minute. The finish was a little glossier, then OE.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
★★★★★ 5
Exact Fit for 2001 BMW 325CI Convertible
Style: Gloss Black Single Slat, Size: E46（1999-2002）2-Door, Style: Gloss Black Single Slat, Size: E46（1999-2002）2-Door
Perfect fit for a 2001 BMW 325CI convertible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
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