★★★★★ 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 Universal Air Filter - Oval Straight - 3.688in Flange ID x 10.25in Base O/S Length x 7.875in H
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Universal Air Filter - Oval Straight - 3.688in Flange ID x 10.25in Base O/S Length x 7.875in HSKU: RC 5178 UPC: 024844246004 K&N Universal Air Filter RC 5178 Oval Straight 3. 688in Flange ID x 10. 25in Base O S x 7. 875in H 2003 2007 Ford Excursion F 250 F 350 Super Duty K&N RC 5178 oval universal air filter delivers high airflow for 2003 2007 Ford Excursion Eddie Bauer Limited XLS XLT and F 250 F 350 Super Duty XL XLT Lariat King Ranch Harley Davidson Edition models. Rigid 3. 688in ID flange clamps securely to intake hose for direct fit.
Quick Dispatch:
Your K&N Universal Air Filter - Oval Straight - 3.688in Flange ID x 10.25in Base O/S Length x 7.875in H orders ship within 1-2 business days.
Delivery Options:
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- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your K&N Universal Air Filter - Oval Straight - 3.688in Flange ID x 10.25in Base O/S Length x 7.875in H 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.
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4.1 ★★★★★
Based on 1345 reviews
Sort
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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