K&N Engineering 33-2004 High-Flow Replacement Air Filter for 1974-1983 Porsche 911

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 classic Porsche 911 with the K&N Engineering 33-2004 High-Flow Air Filter, a washable and reusable drop-in replacement designed for the factory air box. Its layered, oiled cotton media is engineered to improve airflow while helping capture contaminants, supporting responsive engine performance and reliable protection.

The K&N 33-2004 air filter is designed for long-term use and can be cleaned and reused throughout the life of the vehicle, helping reduce the waste associated with disposable filters. Installation is straightforward because the filter is designed to fit the original air box without requiring major modifications. K&N backs this performance filter with a 10-Year/Million Mile Limited Warranty and a No-Hassle Lifetime Limited Warranty. For maintenance, pair it with the K&N 99-5000 Filter Care Service Kit Aerosol.

Brief Description: Washable, reusable high-flow replacement air filter for select 1974-1983 Porsche 911 applications.

Key Product Specifications & Technical Data:

• Brand: K&N Engineering
• Part Number: 33-2004
• Product Type: Automotive replacement air filter
• Filter Design: Drop-in replacement for the factory air box
• Filter Media: Layered, oiled cotton
• Serviceability: Washable and reusable
• Warranty: 10-Year/Million Mile Limited Warranty
• Maintenance Product: Compatible with K&N 99-5000 Filter Care Service Kit Aerosol

Fitment: Designed to fit select 1974, 1976-1983 Porsche 911 models. Verify the original air box and vehicle application before installation.

What's Included: One K&N Engineering 33-2004 High-Flow Air Filter.

Features:

• High-flow performance: Layered, oiled cotton filter media is engineered to improve airflow and support increased horsepower.
• Reusable construction: Washable design can be serviced and reused throughout the life of the vehicle.
• Factory air-box fit: Drop-in replacement design installs into the original air box for convenient application.
• Reduced waste: Reusable construction helps reduce the number of disposable filters and packaging sent to landfills.

Fitments:
1974 Porsche 911 Base
1974 Porsche 911 S
1975 Porsche 911 S
1976 Porsche 911 S
1976 Porsche 911 Turbo Carrera
1977 Porsche 911 S
1977 Porsche 911 Turbo Carrera
1978 Porsche 911 SC
1979 Porsche 911 SC
1980 Porsche 911 SC
1981 Porsche 911 SC
1982 Porsche 911 SC
1983 Porsche 911 SC

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