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K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration. Compatible Vehicles: 2011-2017 BMW 535i 2009-2017 BMW 535i GT 2011-2017 BMW 535i GT xDrive 2011-2016 BMW 535i xDrive 2011-2020 BMW 640i 2013-2019 BMW 640i Gran Coupe 2014-2018 BMW 640i xDrive 2014-2019 BMW 640i xDrive Gran Coupe 2018-2018 BMW 640i xDrive Gran Turismo 2009-2015 BMW 740i 2009-2009 BMW 740iL 2011-2015 BMW 740Li 2013-2015 BMW 740Li xDrive 2012-2016 BMW ActiveHybrid 5 2012-2015 BMW ActiveHybrid 7 2010-2017 BMW X3 2012-2012 BMW X3 35i 2013-2013 BMW X3 xDrive28i 2013-2014 BMW X3 xDrive35i 2015-2018 BMW X4 2014-2014 BMW X4 xDrive 35i 2011-2018 BMW X5 2010-2010 BMW X5 xDrive35i 2008-2019 BMW X6. UPC: 024844247216. Product Dimensions (L x W x H): 5.55 x 4.84 x 0.75 inches. Product weight: 1.6 ounces. Manufacturer part number: 33-2428. BZDefense SKU: BZ5PA3T4.
- 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 (based on the average miles driven per year of 15,000 miles)
- ULTIMATE LONGEVITY: No-hassle limited lifetime warranty on stock replacement K&N air filters- limitations apply
- EASY INSTALLATION: K&N Air Filters are pre-treated 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
- ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters
- MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability
Specifications:
| Materials & Construction | |
| Shape | Rectangular |
| Product Details | |
| GTIN | 024844247216 |
| Included Components | main item |
| Item Type Name | Engine Air Filter |
| Model Number | 33-2428 |
| OEM Equivalent Part Number | 13717571355, 13717583725, 13717605913 |
| Product Grade | Replacement Part |
| Unit Count | 1.0 Count |
| UPC | 024844247216 |
| Sizing & Dimensions | |
| Height | 0.75 inches |
| Length | 5.55 inches |
| Product Dimensions | 5.55"L x 4.84"W x 0.75"H |
| Size | 5.55 x 4.84 x 0.75 inches |
| Weight | 1.6 ounces |
| Width | 4.84 inches |
| Technical Specifications | |
| Fit Type | Vehicle Specific Fit |
| Manufacturer Warranty Description | Limited warranty |


