K&N Engineering Replacement Drop-In Air Filter

2006–2009 BMW 135 / 335 / 535

Part #: E-3495

Overview

The K&N Engineering Replacement Drop-In Air Filter for BMW 135, 335, and 535 models from 2006 to 2009 is designed to enhance your vehicle's air intake system with high-performance filtration. Crafted for enthusiasts who seek reliable, reusable, and high-flow air filters, this product ensures your BMW receives clean, unrestricted airflow for improved engine efficiency and responsiveness. Whether you're a daily driver or a spirited enthusiast, this filter helps support optimal engine performance while maintaining excellent filtration standards.

Designed to replace the factory air filter, this K&N filter offers a perfect fit and straightforward installation, making it an ideal upgrade for those looking to maximize their vehicle's potential without complex modifications. Its durable construction and washable design mean you'll enjoy long-term savings and consistent performance over the life of your vehicle.

Key Features

The K&N Replacement Drop-In Air Filter incorporates advanced materials and engineering to deliver superior airflow and filtration. Key features include:

• High-quality, washable, and reusable cotton gauze media that provides high airflow with excellent filtration capabilities.
• Constructed with durable, epoxy-coated aluminum wire mesh to support the cotton media and maintain shape during use.
• Designed to fit directly into the stock air box, ensuring a seamless upgrade without the need for modifications or additional tuning.
• Engineered for extended service intervals—simply clean and re-oil the filter to restore performance.
• Off-road and dusty environment compatible, making it suitable for a variety of driving conditions.
• Reduces air restriction compared to standard paper filters, supporting better engine breathing and potentially enhancing throttle response and horsepower.
• Manufactured with precision to ensure a perfect fit and seal, preventing unfiltered air from bypassing the filter media.
• Backed by K&N’s renowned quality and performance standards, ensuring reliability and longevity.
• Designed for easy maintenance—simply remove, clean with K&N cleaning solutions, and re-oil for continued optimal performance.

Filter Options

This product features a high-flow cotton gauze media that balances filtration with maximum airflow. The filter is oiled to enhance particle capture, making it suitable for most driving environments, including off-road and dusty conditions. Its washable and reusable design means you can maintain peak performance with regular cleaning, reducing waste and ongoing costs.

Construction & Design

The K&N E-3495 filter is built with a durable, epoxy-coated aluminum wire mesh that supports the cotton gauze media, preventing collapse and ensuring consistent airflow. The cotton gauze media is layered to optimize filtration efficiency while minimizing airflow restriction. Its precise, factory-like fit ensures a secure seal within the stock air box, preventing unfiltered air from bypassing the filter. The overall design emphasizes longevity, ease of maintenance, and performance, making it a trusted choice for automotive enthusiasts seeking a reliable upgrade.

Installation & Fitment

Installing the K&N Replacement Drop-In Air Filter is a straightforward process that requires no special tools or modifications. Simply remove the existing factory filter from your BMW's air box and replace it with the K&N filter. The precise dimensions ensure a perfect fit, creating an airtight seal that maintains optimal filtration and airflow. No cutting, drilling, or tuning is necessary, making this an easy upgrade for DIY enthusiasts and professional installers alike.

• Remove the factory air filter from your vehicle's air box.
• Insert the K&N E-3495 filter into the air box, ensuring proper alignment and seal.
• Secure the air filter in place if necessary, following your vehicle's service procedures.
• Reinstall any removed components and enjoy improved airflow and filtration.

What's Included

• One K&N Engineering Replacement Drop-In Air Filter (E-3495)
• Installation instructions

Ideal For

• BMW owners seeking a high-performance, reusable air filter
• Enthusiasts looking to improve engine response and efficiency
• Drivers operating in dusty or off-road environments requiring durable filtration
• Anyone interested in reducing ongoing costs with a washable, long-lasting filter