K&N Hammer Street Metal Intake System - Mirror Finish RK-3933 — Harley-Davidson Dyna Wide Glide, Dyna Low Rider, Dyna Street Bob (2001-2017)

K&N Hammer Street Metal intake system with mirror-finish aluminum cover, designed to replace the stock intake assembly and increase horsepower and torque on Harley-Davidson motorcycles. Features an oversized K&N high-flow air filter element and integrated velocity stack for enhanced airflow and a custom appearance.

Features

• Oversized K&N high-flow air filter element
• Aluminum velocity stack for improved airflow
• Mirror-finish aluminum cover
• Built-in breathers replace external OE units
• Washable and reusable filter element

Specifications

• Brand: K&N
• Manufacturer Part #: RK-3933
• UPC: 024844300805
• Finish: Mirror
• Length: 11.75 in
• Width: 9.5 in
• Height: 4.87 in
• Weight: 4.18 lbs

Frequently Asked Questions

Will this increase horsepower and torque?

Yes — the oversized high-flow filter element and velocity stack are engineered to boost rear-wheel horsepower and torque compared to stock intake.

Is the filter element reusable?

Yes — K&N high-flow elements are washable and reusable. Clean and re-oil when dirty rather than replacing.

Does this require a tuner or fuel-air calibration?

Intake systems alone may not require remapping, but a fuel-air adjustment can optimize performance gains depending on other modifications.

What finish options are available?

This model comes in mirror finish. K&N also offers wrinkle black aluminum cover if you prefer a different aesthetic.