It can draw more air into your engine. As a result, it improves throttle response and more horsepower. The fine mesh increases the amount of air flow, straightens the flow and stop sucking hot air from high temperature engine compartment, Washable and reusable. Gain instant horsepower (10-15 ) by improving the filtration process. Easy Installation, replace the air filter of car directly, Installation instructions not included. Name:High Flow Air Filter Other Part Number: 13717521033 Material Type: Non-woven Fabric Filter Special Features: Reusable, Washable, High-Flow Interchange Part Number: 13717577780 Placement on Vehicle: Air Intake Box Fit:For E60 E61 520I 523I 525I 525Xi 528I 530I 630I Z4 Fitment: YEAR CAR APPLICATIONS 2003 For 520i 2.0L L6 Gas E60, E61 2003-2005 For 520i 2.2L L6 Gas 2005-2010 For 523i 2.5L L6 Gas E60, E61 2004-2008 For 525i 2.5L L6 Gas 2006-2010 For 525i 3.0L L6 Gas 2005-2008 For 525xi 3.0L L6 Gas 2008-2010 For 528i xDrive 3.0L L6 Gas US Models Only 2008-2009 For 528xi 3.0L L6 Gas 2003-2010 For 530i 3.0L L6 Gas 2005-2008 For 530xi 3.0L L6 Gas 2004-2011 For 630i 3.0L L6 Gas 2006-2009 For Z4 3.2L L6 Gas Warm Tips: Because these cars of the same engine have different names and displacements in different countries, the models cannot be fully displayed. If you are not sure whether your car can be used, you can measure the size of the air filter. There are 2-4 mm difference that the replacement air filter with the air filter. Colour:As Shown Material:Plastic + Paper Package Contents: 1 x High Flow Air Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.