This is absolutely the least expensive and easiest way to improve horsepower and extend the life of your air filter! The sandwiched layers of cotton gauze, specially treated with K&N air filter oil, provides five times more filtering surface over the element circumference. This serves to smooth incoming air flow while reducing intake restriction and thereby boosting horsepower. K&N Performance Air Filters come pre-oiled for easy installation and with K&N's famous 1,000,000 mile warranty. K&N filters are easy to clean: wash with cold water every year and re-oil it every two years for a lifetime of performance.
Available for the following BMWs: (click icon to change BMW)
E90/E92 325/328/330 K&N High-Flow Air Filter
(more info) This is absolutely the least expensive and easiest way to improve horsepower and extend the life of your air filter. This filter is a direct replacement to your OE air filter, which installs into your factory airbox.
Fits all 2006 and newer 325i, 325xi, 328i, 328xi, 330i, and 330xi sedan, coupe, and convertibles (E90, E91, E92, E93 chassis).
This K&N air filter fits the following BMWs::
2007-2010 E90 3 series sedan - 335i and 335xi sedan
2007-2010 E92 3 series coupe - 335 & 335xi coupe 2010+ E92 3 series coupe - 335is
2007-2010 E93 3 series convertible - 335i convertibles
2008-2010 E82/E88 1 series 135i coupe and 135i convt
2007-2010 E60 5 series 535i & 535xi turbo sedan
Part #: 33-2367
Price: $59.95 (USD)
K&N Recharger Kit
(more info) Cleaning and re-oiling your K&N filter will prolong its life and maintain K&N's performance adavantage. You should clean your filter every year with water and K&N's cleaning solution and re-oil the filter every two years. K&N air fitlers come pre-oiled.
Part #: 99-5050
Regular Price: $12.95 (USD) Sale Price: $11.66 (USD)