K&N Hammer Street Metal Intake System - Black Finish — Harley-Davidson Road King, Road King Special, Tri Glide Ultra Classic (2017-2022)

K&N Hammer Street Metal intake system in black finish replaces your stock intake with a custom aluminum assembly built around K&N's oversized High-Flow air filter. Engineered to increase horsepower and torque while adding a polished custom look to your Harley engine bay.

Features

• Oversized K&N High-Flow air filter element
• Aluminum backing plate with integrated velocity stack
• Built-in breathers replace external OE breathers
• Black wrinkle finish aluminum cover
• Washable and reusable filter element

Specifications

• Brand: K&N
• Manufacturer Part #: RK-3954B
• UPC: 024844365293
• Finish: Black wrinkle
• Length: 11.75 in
• Width: 9.5 in
• Height: 4.88 in
• Weight: 3.8 lbs

Frequently Asked Questions

Is this filter reusable?

Yes — the K&N High-Flow element is washable and can be cleaned and re-oiled for years of service.

Will I need to tune my bike after installing this intake?

A fuel management tuner is recommended to optimize performance gains from the increased air flow.

Does this replace the entire stock intake assembly?

Yes — this system replaces the stock intake manifold, air box, and breather plumbing with one integrated assembly.

What finish options are available?

This RK-3954B model comes in black wrinkle finish. Check K&N's catalog for mirror-finish variants.