K&N RK-3953 Street Metal Air Intake System for Harley Davidson

Upgrade your Harley Davidson with the K&N RK-3953 Street Metal Air Intake System, designed specifically for models like the Harley Davidson FLSTFI Fat Boy (2001-2006) and Harley Davidson FXSTBI Night Train (2001-2006). This high-performance intake system replaces the restrictive stock air cleaner, providing a significant boost in airflow for increased power and efficiency.

Key Features

• Air Filter Color: Red
• Air Filter Height: 2.39 in (61 mm)
• Material: Cotton Gauze, washable and reusable
• Estimated Horsepower Gain: 4.24 HP at 4358 RPM
• Housing Material: High-volume cast aluminum with a matte black finish
• Weight: 4.1 lb (1.9 kg)
• Street Legal: Yes, except in California and states following California emissions standards

Stylish Design

The RK-3953 features a modern, oval-shaped matte black housing complemented by silver details and sanded fins, giving your bike an aggressive yet refined look. Internal breathers maintain a clean appearance while enhancing performance.

Easy Installation

Installation is straightforward and can typically be completed in under 90 minutes. All necessary mounting hardware is included, making it a hassle-free upgrade for your ride.

Fitment

This intake system is compatible with a wide range of Harley Davidson models, including:

• FLSTFI Fat Boy (2001-2006)
• FLSTSI Heritage Springer (2001-2003)
• FXSTBI Night Train (2001-2006)
• FXSTDI Softail Deuce (2001-2006)
• FLHRCI Road King Classic (2002-2006)
• ...and many more!

Customer Feedback

Many riders have noted the noticeable increase in throttle response and overall performance after installing the RK-3953. The sleek design not only enhances the bike's aesthetics but also contributes to a more aggressive sound while riding.

Warranty

This product comes with a no-hassle lifetime limited warranty, ensuring your investment is protected.

Installation Resources

• Installation Instructions: CLICK HERE
• Dyno Results: CLICK HERE