K&N Engineering
KNN33-2004
K&N Engineering

K&N 77-83 Porsche 911 CSI F/I Drop In Air Filter

$79

Description

Upgrade your Porsche 911 CSI F/I with the ultimate performance enhancement. These K&N washable high-flow air filters are crafted with state-of-the-art, layered, and oiled cotton media that not only boosts horsepower but also ensures superior airflow and lasting reliability. With an environmentally friendly, reusable design, this filter offers a cost-effective upgrade over disposable options while delivering a noticeable performance advantage.

Key Features

• Designed for significant horsepower gains
• Durable construction with 4 Layers of Protection to trap contaminants
• Washable and reusable for long-term cost savings and environmental benefits
• Engineered for optimum airflow improvement

& Longevity

Backed by K&N’s renowned 10-Year/Million Mile Limited , you can count on reliable performance and enduring quality.

Easy Installation

This drop-in design fits perfectly into your factory air box, ensuring an effortless upgrade with no modifications required.

Compatibility

Year Make Model Submodel
1974 Porsche 911 Base
1974–1977 Porsche 911 S
1978–1983 Porsche 911 SC
1976–1977 Porsche 911 Turbo Carrera

Explore more performance-enhancing options in our Air Filters – Drop In collection.

Upgrade your Porsche 911 CSI F/I with the ultimate performance enhancement. These K&N washable high-flow air filters are crafted with state-of-the-art, layered, and oiled cotton media that not only boosts horsepower but also ensures superior airflow and lasting reliability. With an environmentally friendly, reusable design, this filter offers a cost-effective upgrade over disposable options while delivering a noticeable performance advantage.

Key Features

• Designed for significant horsepower gains
• Durable construction with 4 Layers of Protection to trap contaminants
• Washable and reusable for long-term cost savings and environmental benefits
• Engineered for optimum airflow improvement

& Longevity

Backed by K&N’s renowned 10-Year/Million Mile Limited , you can count on reliable performance and enduring quality.

Easy Installation

This drop-in design fits perfectly into your factory air box, ensuring an effortless upgrade with no modifications required.

Compatibility

Year Make Model Submodel
1974 Porsche 911 Base
1974–1977 Porsche 911 S
1978–1983 Porsche 911 SC
1976–1977 Porsche 911 Turbo Carrera

Explore more performance-enhancing options in our Air Filters – Drop In collection.

Frequently Asked Questions

Feel Free To Ask Anything!

What payment methods do you accept for online purchases?

We accept all major credit cards, PayPal, Shop Pay, and Apple Pay for your convenience. Once your order ships, you'll receive a tracking number via email.

How long does shipping usually take?

In stock items typically ship in 24-48 hours. Out of stock items can take longer.

Can I return an item if I'm not satisfied?

Yes, we have a 30-day return period. You can view our Return & Refund Policy page for more details - Return & Refund Policy.

Do you offer gift cards?

Yes! They are the perfect gift for those times when you don't know exactly what to get or need something at the last minute. Great for any time of the year as well as those special occasions. Our Gift Cards come in $12.5, $25, $50, $125 and $250 denominations. And they never expire!

Visit our Gift Card page for more details - Gift Cards.

Can I track my order after it's been placed?

Yes. Once your order has shipped, you will be emailed the tracking information. Additionally, we will email you a delivery confirmation email once your order shows that it has been delivered.

What should I do if I receive a damaged item?

If your shipment is damaged, please reach out to our Customer Support team at 888-181-9012 or email us at [email protected]. You may also contact us here - Contact Us.