K&N Performance Drop-In Air Filter - E60 525i 525xi 528i 528xi 530i 530xi - Z4 Z4 M Roadster Z4 M Coupe

K&N's drop-in air intake filter is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance drop-in intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase! 

K&N's drop in air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

This item fits the following BMWs:
2004-2010 E60 BMW 525i 525xi 528i 528xi 530i 530xi
2006-2008 E85 BMW Z4 M Roadster Z4 M Coupe