


K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENTK&N's custom air cleaner assemblies are designed with the racer in mind. They incorporate good looks as well as the superior air flow that you expect from K&N. These custom air cleaner assemblies are designed for use with any engine that uses a round element air cleaner housing. They incorporate our famous K&N Air Filters and provide more air flow than other assemblies of this type. Available in 4 different designs, the perfect assembly is sure to be
Quick Dispatch:
Your K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your K&N Custom Round Filter 5-1/8in FLG / 9in OD x 4-1/8in HW/VENT 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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Reviewed in the United States on May 20, 2026
★★★★★ 5
Worked amazing during christmas
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★★★★★ 4
Satisfactory
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★★★★★ 5
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