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High-Flow Original Lifetime Engine Air Filter - BMW 120i L4-2.0L F/I
SKU
E-2021
K&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 No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
- ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
- RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
- 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
- CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
- REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
- ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply
- EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
- REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
| Air Filter Material | Cotton Gauze |
| Height | 4.5 in (114 mm) |
| Inner Wire | No |
| Inside Diameter | 3.156 in (80 mm) |
| Outside Diameter | 5.125 in (130 mm) |
| Top Style | Rubber |
| Top Material | None |
| Air Filter Shape | Round |
| Flanges | None |
| Package Contents | 1 Air Filter |
| Package Quantity | 1 |
| Warranty | No-Hassle Lifetime Limited |
| Washable | Yes |
| Product Style | Round Air Filter |
| Weight | 1 lb (0.5 kg) |
| Filter Re-Oiling Amount | 0.79 oz (23 ml) |
| Product Box Height | 7.19 in (183 mm) |
| Product Box Length | 6.5 in (165 mm) |
| Product Box Width | 6.5 in (165 mm) |
| Filter Line | High-Flow |
| Overall Filter Efficiency | Up To 99% Efficiency |
| BMW 1371753274 |
| BMW 13717532751 |
| BMW 13717532754 |
| BMW 13737532754 |
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UP TO99%
Efficiency
LIFETIME
Usage Mileage
DIY Level
Easy Moderate Advanced
Tools Typically Needed
Screwdriver
Installation Time
5-10 Minutes
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