K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible 1990-2006 BMW (X3, Z4, 520i, 525i, 530i, Z3, 728i, 728iL, 323Ti, 523i, 528i, M3),33-2070

Compatible Vehicles: 2004-2006 BMW X3; 2003-2006 BMW Z4; 1996-2004 BMW 520i; 2000-2004 BMW 525i; 2000-2004 BMW 530i; 1997-2003 BMW Z3; 1994-2001 BMW 728i; 1996-2001 BMW 728iL; 1997-2000 BMW 323Ti; 1995-2000 BMW 523i; 1995-2000 BMW 528i; 1992-2000 BMW M3; 1990-1999 BMW 320i; 1998-1999 BMW 323Ci; 1995-1999 BMW 323i; 1997-1999 BMW 323iS; 1991-1999 BMW 325i; 1995-1999 BMW 328i; 1998-1999 BMW 328ic; 1996-1999 BMW 328iS; 1998-1999 BMW M Coupe; 1997-1998 BMW 328Ci; 1993-1995 BMW 325Ci; 1992-1995 BMW 325iS Cross Reference: AC Delco A1414C; Baldwin PA4048; BMC 13201; BMC FB13201; BMW 13721730946; BMW 13721744869; Carquest 88320; Carquest DW88320; Champ Labs. AF7885; Fram CA5350; Hastings AF412; Luber-Finer AF7885; Mann-Hummel C25114; Mann-Hummel C251141; MicroGard MGA46028; MicroGard MGA46320; Mobil AF7885; Mopar MB906051; Napa 6320; Premium Guard PA5105; Purepro A5105; Purolator A45105; Repco RAF259; Ryco A1413; Service Champ AF5105; Simota OB003; STP SA5350; Valvoline VFAP7865; Warner WAF7885; Wesfil WA1006; WIX 46028; WIX 46320

• ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
• RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
• 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
• CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
• REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
• ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply
• EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
• REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
• MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability