K&N Engineering 33-2573 Replacement High-Flow Air Filter for BMW 5 Series, 6 Series and 7 Series

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 10-Year/Million Mile 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! K&N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K&N's No-Hassle Lifetime Limited Warranty. Associated products: 99-5000 Filter Care Service Kit Aerosol

• 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
• Million Mile Limited Warranty

Upgrade your BMW’s factory air intake system with the K&N Engineering 33-2573 Replacement High-Flow Air Filter. This washable and reusable filter uses layered, oiled cotton media to improve airflow while capturing contaminants that can affect engine performance. Designed as a direct replacement for the original equipment filter, it installs easily into the factory air box without requiring modifications.

The K&N 33-2573 is engineered to support increased horsepower and exceptional engine protection while maintaining dependable filtration for everyday driving. Unlike disposable filters, this reusable automotive air filter is designed to last for the life of the vehicle, helping reduce waste from replacement filters and packaging. Proper cleaning and re-oiling with the K&N 99-5000 Filter Care Service Kit Aerosol helps maintain long-term performance.

• Feature: Layered, oiled cotton filtration media promotes high airflow while capturing engine-damaging contaminants.
• Feature: Washable and reusable design helps reduce waste and eliminates the need for frequent disposable filter replacement.
• Feature: Direct drop-in replacement installs in the factory air box for straightforward vehicle-specific service.
• Feature: Backed by K&N’s 10-Year/Million Mile Limited Warranty for long-term ownership confidence.

Key Product Specifications & Technical Data:

• Brand: K&N Engineering
• Part Number: 33-2573
• Product Type: Replacement high-flow automotive air filter
• Filter Construction: Layered, oiled cotton media
• Service Type: Washable and reusable
• Installation Location: Factory air box
• Warranty: 10-Year/Million Mile Limited Warranty
• Recommended Service Product: K&N 99-5000 Filter Care Service Kit Aerosol

What’s Included: One K&N Engineering 33-2573 Replacement High-Flow Air Filter.

Fitment: Designed for select BMW 535i models from 1988 through 1993, BMW 635i models from 1989, BMW 735i models from 1991 through 1992, and BMW 735iL models from 1990 through 1992. Verify the vehicle application before ordering.

Features:

• Layered, oiled cotton filtration media promotes high airflow while capturing engine-damaging contaminants.
• Washable and reusable design helps reduce waste and eliminates the need for frequent disposable filter replacement.
• Direct drop-in replacement installs in the factory air box for straightforward vehicle-specific service.
• Backed by K&N’s 10-Year/Million Mile Limited Warranty for long-term ownership confidence.

Fitments:
1988 BMW 535i Base
1988 BMW 735i Base
1988 BMW 735iL Base
1989 BMW 535i Base
1989 BMW 735i Base
1989 BMW 735iL Base
1990 Audi V8 Quattro Base
1990 BMW 535i Base
1990 BMW 735i Base
1990 BMW 735iL Base
1991 Audi V8 Quattro Base
1991 BMW 535i Base
1991 BMW 735i Base
1991 BMW 735iL Base
1992 Audi V8 Quattro Base
1992 BMW 535i Base
1992 BMW 735i Base
1992 BMW 735iL Base
1993 Audi V8 Quattro Base
1993 BMW 535i Base
1994 Audi V8 Quattro Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1