K&N PERFORMANCE AIR FILTER BMW E36 E39 Z3

K&N PANEL FILTER 33--2070 TO Suit : 
BMW E36 3 SERIES 6 CYL 1990-99
320i 323i 325i 328i M3 Power series 3.0L 3.2L
BMW E39 5 Series 1997-04 520i 523i 525i 528i 530i
Z3 1997-03
 

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N.
The Importance of Oil
A K&N Air Filter is made of 4 to 6 layers of cotton gauze sandwiched between two epoxy-coated aluminum wire screens.  The cotton is treated with a specially formulated grade of oil causing tackiness throughout the cotton’s microscopic strands.  The nature of the cotton allows high volumes of airflow, and when combined with the tackiness of the oil creates a powerful filtering media that ensures engine protection.