Description K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N’s No-Hassle Lifetime Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product! MORE INFORMATION 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 SPECIFICATIONS Air Filter Shape Panel Air Filter Material Cotton Gauze Washable Yes Height 1.313 in (33 mm) Outside Length 12.5 in (318 mm) Outside Width 7.063 in (179 mm) Package Contents 1 Air Filter Package Quantity 1 Warranty No-Hassle Lifetime Limited Product Style Panel Air Filter Top Style Open Weight 1.8 lb (0.8 kg) Filter Re-Oiling Amount 1.59 oz (47 ml) Product Box Height 1.75 in (44 mm) Product Box Length 13.56 in (345 mm) Product Box Width 7.72 in (196 mm) Inner Wire No VEHICLE APPLICATIONS Supported Vehicles 1992 BMW M3 2.5L L4 Gas All Models 1991 BMW M3 2.3L L4 Gas All Models 1991 BMW M3 2.5L L4 Gas All Models 1990 BMW 635CSi 3.5L L6 Gas All Models 1990 BMW M3 2.3L L4 Gas All Models 1990 BMW M3 2.5L L4 Gas All Models 1989 BMW 635CSi 3.5L L6 Gas All Models 1989 BMW M3 2.3L L4 Gas All Models 1988 BMW 316i 1.8L L4 Gas All Models 1988 BMW 535iS 3.5L L6 Gas All Models 1988 BMW 635CSi 3.5L L6 Gas All Models 1988 BMW M3 2.3L L4 Gas All Models 1987 BMW 316i 1.8L L4 Gas All Models 1987 BMW 318i 1.8L L4 Gas To 8/87 1987 BMW 518i 1.8L L4 Gas All Models 1987 BMW 525i 2.5L L6 Gas All Models 1987 BMW 528i 2.8L L6 Gas All Models 1987 BMW 535i 3.5L L6 Gas All Models 1987 BMW 628CSi 2.8L L6 Gas All Models 1987 BMW 635CSi 3.5L L6 Gas All Models 1987 BMW 735i 3.5L L6 Gas US Models Only 1987 BMW M3 2.3L L4 Gas All Models 1987 BMW M535i 3.5L L6 Gas All Models 1986 BMW 318i 1.8L L4 Gas All Models 1986 BMW 323i 2.3L L6 Gas All Models 1986 BMW 518i 1.8L L4 Gas All Models 1986 BMW 525i 2.5L L6 Gas All Models 1986 BMW 528i 2.8L L6 Gas All Models 1986 BMW 535i 3.5L L6 Gas All Models 1986 BMW 628CSi 2.8L L6 Gas All Models 1986 BMW 635CSi 3.5L L6 Gas All Models 1986 BMW 728i 2.8L L6 Gas E23 1986 BMW 732i 3.2L L6 Gas All Models 1986 BMW 733i 3.2L L6 Gas All Models 1986 BMW 735i 3.5L L6 Gas US Models Only 1986 BMW 735i 3.5L L6 Gas Non-US Models, To 8/86 1986 BMW 745i 3.5L L6 Gas All Models 1986 BMW M3 2.3L L4 Gas All Models 1986 BMW M535i 3.5L L6 Gas All Models 1985 BMW 318i 1.8L L4 Gas All Models 1985 BMW 320i 2.0L L6 Gas To 8/85 1985 BMW 323i 2.3L L6 Gas All Models CROSS REFERENCES Cross References AC Delco A972C Autopart International 500067105 Beck/Arnley 0420729 BMW 13721271254 Bosch 1457429928 Bosch 73277 Carquest 88135 Champ Labs. AF254 DuraMAX DA254 Ecogard XA3087 Fram CA4521 Hastings AF865 Luber-Finer AF254 Mahle LX36 Mann-Hummel C3394 Mobil AF254 Motorcraft FA1082 Napa 6135 Pipercross PP65DRY Premium Guard PA3087 Purolator A23087 Quaker State QSA4521 Repco RAF172 Ryco A477 STP SA4521 Vaico V200603 Wesfil WA721 WIX 46135
