Air Cleaner Intake Filter Kit for Harley Touring Road King Glide (2017-2025)

High-Flow 90-Degree Air Intake for 2017-2025 Harley Davidson Road King, Road Glide (Milwaukee-Eight / FLH-FLT)

What it Does: Replaces the restrictive factory air cleaner with a forward-facing, high-velocity intake system designed to maximize volumetric efficiency and throttle response on Milwaukee-Eight powerplants.

The Stock Road King & Road Glide Airflow Restriction

The factory intake on 2017-2025 Harley-Davidson Touring models is engineered primarily for noise suppression and emissions compliance rather than peak mechanical performance. The OEM plastic housing creates significant internal turbulence and restricts the volume of air reaching the throttle body at higher RPMs. Furthermore, the stock plastic backing plates are susceptible to heat soak and warping over thousands of thermal cycles, which can compromise the seal and allow unfiltered air to bypass the element. This restriction results in a noticeable "flat spot" in the torque curve during heavy acceleration, preventing the M8 engine from reaching its true output potential.

The Engineering Solution

This intake kit features a 90° forward-facing elbow design that creates a ram-air effect, significantly increasing intake air velocity and pressure. Constructed from high-grade aluminum with a black powdercoat finish, the backing plate and elbow provide a rigid, heat-resistant foundation that maintains a perfect seal against the throttle body. The system utilizes a massive synthetic air filter with an inverted top, providing a much larger surface area compared to stock paper filters. This synthetic media is designed for maximum CFM (Cubic Feet per Minute) while offering superior filtration without the need for messy oils that can contaminate sensors. The slim-profile aluminum elbow also improves ergonomics by providing additional legroom for the rider, while the breather system is integrated to ensure a clean, professional installation.

Technical Specifications

Compatibility

• Fit For M8 Softail 2018-2024
• Fit For M8 Touring 2017-2023
• Fit For M8 Trike 2017-2025
• Fit For Road King Special 2024
• Fit For Road Glide Limited 2024
• Fit For Ultra Limited 2024
• Fit For Road King Special 2025

The Harley Davidson Touring Standard

Engineered for long-distance reliability and sustained power, this intake system ensures your Milwaukee-Eight engine breathes clean, dense air whether you are navigating stop-and-go city traffic or pushing through high-speed interstate miles. The heavy-duty aluminum construction is built to withstand the vibrations and thermal stresses inherent to large-displacement V-twin engines.