K&N Engineering
KNN33-2970
K&N Engineering

K&N 09-10 BMW 523i 3.0L-L6 Drop In Air Filter

$68.99

Description

Experience a significant boost in horsepower and improved airflow with the K&N air filter designed specifically for the BMW 523i. This washable, reusable, high-flow filter offers long-term durability and efficiency, enhancing your vehicle's performance while reducing waste by eliminating the need for disposable filters.

Key Features

• Engineered for high-flow performance with 4 layers of premium, oiled cotton gauze
• Reusable design backed by a 10-Year/Million Mile Limited Warranty
• Simple drop-in installation in your factory air box
• Proven increase in horsepower and acceleration

Specifications

• Air filter dimensions: Approximately 12 x 6 x 4 inches
• Filter re-oiling: Approximately 3.5 oz of oil for optimal performance
• Overall efficiency: Up to 99% filtration
• Durable construction for long-term reliability

Maintenance & Performance

• Cleaning interval: Recommended every 75,000 miles or 5 years, depending on driving conditions
• Cost savings: Up to $125 per year compared to disposable filters
• Environmentally friendly: Reusable design reduces waste and supports sustainable practices

This Part Fits

• Year: 2011
• Make: BMW
• Model: 523i
• Submodel: Base

Upgrade your BMW’s performance with confidence. For more innovative drop-in filter options, visit our Air Filters - Drop In collection or explore the K&N Engineering range for a complete performance upgrade.

Experience a significant boost in horsepower and improved airflow with the K&N air filter designed specifically for the BMW 523i. This washable, reusable, high-flow filter offers long-term durability and efficiency, enhancing your vehicle's performance while reducing waste by eliminating the need for disposable filters.

Key Features

• Engineered for high-flow performance with 4 layers of premium, oiled cotton gauze
• Reusable design backed by a 10-Year/Million Mile Limited Warranty
• Simple drop-in installation in your factory air box
• Proven increase in horsepower and acceleration

Specifications

• Air filter dimensions: Approximately 12 x 6 x 4 inches
• Filter re-oiling: Approximately 3.5 oz of oil for optimal performance
• Overall efficiency: Up to 99% filtration
• Durable construction for long-term reliability

Maintenance & Performance

• Cleaning interval: Recommended every 75,000 miles or 5 years, depending on driving conditions
• Cost savings: Up to $125 per year compared to disposable filters
• Environmentally friendly: Reusable design reduces waste and supports sustainable practices

This Part Fits

• Year: 2011
• Make: BMW
• Model: 523i
• Submodel: Base

Upgrade your BMW’s performance with confidence. For more innovative drop-in filter options, visit our Air Filters - Drop In collection or explore the K&N Engineering range for a complete performance upgrade.

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 $25, $50, $100, $250 and $500 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 888-292-9012 or email us at info@everythingtruckparts.com. You may also contact us here - Contact Us.