K&N Engineering Custom Air Filter

Fits Vehicles with 5-5/16" OD, 4-1/16" ID, 2-3/8" Height

Part #: E-3506

Overview

The K&N Engineering Custom Air Filter is designed to enhance your vehicle's performance by increasing airflow and improving throttle response. Crafted for enthusiasts seeking reliable, high-quality filtration, this round air filter offers a straightforward upgrade to your existing air intake system. Whether you're looking to support increased horsepower, better acceleration, or simply want a reusable filter that saves money over time, this product delivers exceptional value and performance.

Ideal for a wide range of vehicles, the K&N Custom Air Filter is a versatile solution that fits into your factory air box with ease. Its drop-in design ensures a hassle-free installation process, making it suitable for both seasoned mechanics and DIY enthusiasts. By replacing your disposable filter with this washable, reusable unit, you'll enjoy consistent filtration and improved engine breathing, which can contribute to enhanced overall vehicle performance.

Key Features

The K&N Engineering Custom Air Filter incorporates advanced design and high-quality materials to provide optimal performance and durability. Key features include:

• Constructed with a high-flow cotton gauze media layered between durable aluminum wire mesh, ensuring excellent filtration while maximizing airflow.
• Washable and reusable design allows for easy cleaning and maintenance, extending the lifespan of the filter and reducing replacement costs.
• Precisely engineered to fit into your existing factory air box without modifications, thanks to its custom dimensions of 5-5/16" outer diameter, 4-1/16" inner diameter, and 2-3/8" height.
• Drop-in replacement that simplifies installation, requiring no additional tuning or adjustments in most cases.
• Designed to increase horsepower and acceleration by improving airflow compared to standard disposable filters.
• Backed by the trusted K&N reputation for quality and performance, ensuring your vehicle receives a reliable upgrade.
• Meets or exceeds OEM standards for filtration efficiency, helping protect your engine from dirt and debris.
• Suitable for a variety of vehicles, including cars, trucks, and SUVs, with compatible dimensions for many applications.

Construction & Design

The K&N Custom Air Filter features a robust construction with a high-quality cotton gauze media that is layered between corrosion-resistant aluminum wire mesh. This design not only provides superior filtration but also allows for maximum airflow, which is essential for supporting increased engine performance. The filter's round shape and precise dimensions ensure a perfect fit into your vehicle's factory air box, maintaining the integrity of your intake system.

Its washable and reusable nature is made possible through a special oiling process that enhances filtration efficiency while allowing for easy cleaning. When necessary, the filter can be cleaned with K&N's cleaning solutions and re-oiled to restore its performance. The durable materials and meticulous craftsmanship ensure long-lasting service, even under demanding driving conditions.

Installation & Fitment

The K&N Engineering Custom Air Filter is a direct replacement for your vehicle's factory filter. Its drop-in design means installation is straightforward—simply remove the existing disposable filter and insert this washable unit into the factory air box. No cutting, drilling, or tuning is required in most cases, making it an easy upgrade for DIY enthusiasts and professionals alike. Regular cleaning and maintenance will ensure optimal performance and longevity of the filter.

• Easy, bolt-on installation with no modifications needed
• Compatible with a wide range of vehicles that use a 5-5/16" OD, 4-1/16" ID, and 2-3/8" height filter

What's Included

• One high-performance, washable round air filter with specified dimensions
• Installation instructions (if applicable)

Ideal For

• Performance enthusiasts seeking to improve airflow and throttle response
• Drivers looking for a cost-effective, reusable air filter solution
• Anyone wanting to support engine longevity with high-quality filtration
• DIYers who prefer a simple, drop-in upgrade without modifications