★★★★★ 5
Diy tool good stuff
Good fit works as advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
K&N BMW 2-3-4 Series N20 Engine Performance Air Intake System
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N BMW 2-3-4 Series N20 Engine Performance Air Intake SystemThe K&N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid
Quick Dispatch:
Your K&N BMW 2-3-4 Series N20 Engine Performance Air Intake System 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 BMW 2-3-4 Series N20 Engine Performance Air Intake System 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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4.2 ★★★★★
Based on 939 reviews
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Product Reviews
★★★★★ 5
Práctico
Tal cual a la medida que do perfecto para los cambios de filtro llego sin daños
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
★★★★★ 5
Good quality and price
This fits the original cover that was on my car. Made the removal of the oil filter cap very easy effortless.
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Reviewed in the United States on December 8, 2025
★★★★★ 1
not tight enough
It did slip on my BMW M5 F90 oil filter — it wasn’t tight enough. I had to use a microfiber cloth to fill the gap and make it tighter in order to loosen the oil filter.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Worked Perfectly
Fits the S85 oil filter housing like a glove.
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Reviewed in the United States on January 6, 2026
