K&N Replacement Air FIlter 12 BMW 335i / 12-13 BMW M135I (F30) - 33-2997

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 10-Year/Million Mile 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!

This Part Fits:

Year	Make	Model	Submodel
2012-2015	BMW	335i	Base
2014-2016	BMW	335i GT xDrive	Base
2013-2015	BMW	335i xDrive	Base
2014-2016	BMW	435i	Base
2015-2016	BMW	435i Gran Coupe	Base
2014-2016	BMW	435i xDrive	Base
2015-2016	BMW	435i xDrive Gran Coupe	Base
2013-2014	BMW	ActiveHybrid 3	Base
2014-2017	BMW	i8	Base
2016-2018	BMW	M2	Base
2019	BMW	M2	Competition
2014-2016	BMW	M235i	Base
2015-2016	BMW	M235i xDrive	Base

Please note image may vary from product. Also, some items are special order. If delivery time is a concern, please contact us prior to purchase. 

When it comes to automotive filters, there is no greater known name that K&N Engineering!

K&N Engineering is an American manufacturer that specializes in designing and producing high-performance air filtration systems for automotive, motorcycle, and industrial applications. Founded in 1969 by Ken Johnson and Norm McDonald, K&N initially gained recognition for its oil bath air filters, but it became widely known for its innovative cotton gauze air filters that deliver superior performance compared to traditional paper filters.

K&N is best known for its air filters, which are made from multiple layers of oiled cotton gauze, sandwiched between aluminum mesh. This design allows for higher airflow compared to conventional filters, enhancing engine performance, throttle response, and efficiency. These filters are also reusable and washable, offering long-term cost savings and reducing environmental waste compared to disposable paper filters.

The company offers a variety of products, including air intake kits, cold air intake systems, and performance filters for cars, trucks, motorcycles, and even powersport vehicles. K&N’s cold air intakes, in particular, are popular upgrades for performance enthusiasts, as they provide cooler air to the engine, improving power output and efficiency.

In addition to air filtration products, K&N also manufactures oil filters and performance accessories such as cleaning kits for maintaining their filters. Their products are designed to meet the needs of both casual car enthusiasts and professional racers. The company has a strong presence in the motorsport community and is often seen as a trusted brand for improving engine performance and efficiency.

​Fidanza Performance, founded in 1997, is a leading US manufacturer of high-quality lightweight aluminum flywheels, precision adjustable cam gears, and high-performance clutches. With nearly 20 years in the automotive performance market, Fidanza is renowned for its expertise and respected globally, offering products for a wide range of vehicles, from European sports cars to modern muscle cars and imports. The company originated in racing, with founder Lou Fidanza's success in the SCCA leading to the creation of specialty parts like aluminum flywheels. Fidanza has since expanded its product line to include cam gears and performance clutches, gaining a loyal customer base and worldwide recognition. In 2023 Fidanza opened the SpeedParts4Less Marketplace which sells other manufacturers quality high performance parts!