SKU: 33-2004 | UPC: 024844001658
K&N 33-2004 Replacement Air Filter for 1974-1983 Porsche 911
K&N 33-2004 is a direct drop-in replacement high-flow air filter designed for 1974-1983 Porsche 911 models including Base S SC and Turbo Carrera. This washable reusable filter uses layered oiled cotton media to deliver more airflow for increased horsepower and acceleration while trapping contaminants for engine protection. Backed by K&N No-Hassle Lifetime Limited Warranty it installs easily into your factory air box for immediate performance gains.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form a mesh that blocks and traps dirt and harmful contaminants.
- Clean Once Every 5 Years: Requires cleaning only every 75000 miles under normal highway driving or 5 years at 15000 miles per year.
- Easy Installation: Pre-oiled and ready to drop into factory air box for one of the simplest vehicle upgrades with quick performance results.
- Engineered Power: High-flow media increases horsepower acceleration and overall engine performance.
- Reusable Saves Money: Washable design saves up to $125 over 200000 miles compared to buying multiple disposable filters at OE MSRP.
Product Notes
- Filter measures 12.5 in length x 7.75 in width x 1.375 in height.
- Wash and re-oil using K&N cleaning kit for longest life.
- Product weight 1.5 lb ships in 13 x 8 x 2 in box.
Installation Notes
- Professional installation recommended.
- Remove factory air filter and drop in K&N 33-2004 no modifications needed.
- Compatible with factory air box hardware no additional parts required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1974 | Porsche | 911 | Base |
| 1974-1977 | Porsche | 911 | S |
| 1978-1983 | Porsche | 911 | SC |
| 1976-1977 | Porsche | 911 | Turbo Carrera |
Why Choose K&N?
- Over 50 years designing high-flow air filters for automotive performance.
- Manufactured with durable premium materials for lifetime durability.
- Engineered for precise vehicle fit and maximum airflow gains.
Frequently Asked Questions
- Q: Does this fit my 1980 Porsche 911 SC?
A: Yes K&N 33-2004 fits 1978-1983 Porsche 911 SC as a direct drop-in replacement. - Q: What material is used in this filter?
A: Layered oiled cotton gauze media provides high airflow and filtration. - Q: What is the warranty and maintenance?
A: No-Hassle Lifetime Limited Warranty clean every 75000 miles with K&N kit.
Shipping & Handling
- Method: Standard ground shipping
- Availability: In stock – ships same or next business day
- Packaging: Protective box 13 x 8 x 2 inches
- Weight: 1.5 lb
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