K&N Hammer Street Metal Intake System Mirror Finish - Harley Dyna & Softail
About K&N
K&N pioneered the washable, reusable cotton-gauze air filter and has been building intake products since 1969. On a V-twin, an intake swap is usually step one of the classic uncork — filter, exhaust, then tune.
The K&N Hammer Street Metal Intake System is engineered to replace your stock air cleaner assembly, uncorking significant horsepower and torque gains for your Harley-Davidson. This system combines high-performance airflow with a striking mirror-finish aluminum cover for a custom look.
Why riders pick this
- Boosts horsepower and torque over stock intake
- Mirror-finish aluminum cover for a custom look
- Oversized high-flow air filter element
- Integrated velocity stack for enhanced airflow
- Washable and reusable filter element for easy maintenance
When you're chasing every usable pony from your V-twin, the intake system is a critical upgrade. The K&N Hammer Street Metal Intake System is designed from the ground up to maximize airflow, providing your Harley-Davidson engine with the unrestricted breath it needs to perform at its peak. Beyond the performance benefits, the mirror-finish aluminum cover adds a touch of custom class to your engine's aesthetic.
Engineered for Enhanced Performance
- Oversized K&N high-flow air filter element for superior air volume
- Integrated aluminum velocity stack optimizes and smooths incoming airflow
- Mirror-finish aluminum cover provides a sharp, custom visual upgrade
- Built-in breathers eliminate the need for external OE units
- Washable and reusable filter element for long-term value and easy maintenance
A Direct Path to More Power
Upgrading your intake is one of the most effective ways to wake up a detuned factory V-twin. The Hammer Street Metal Intake isn't just about looks; it's a performance-first component that delivers a noticeable improvement in throttle response and power band. While designed for straightforward installation, a dyno tune is recommended after any significant intake upgrade to ensure optimal fuel-air mixture and unlock the full potential of your new setup.
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
Common questions
Will this intake system require a dyno tune?
While the bike may run with a basic fuel management adjustment, a professional dyno tune is highly recommended to fully optimize your fuel-air ratio and maximize the horsepower and torque gains from this high-performance intake.
Is the air filter element reusable?
Yes, the K&N high-flow air filter element is designed to be washable and reusable. You can clean and re-oil it as part of your regular maintenance rather than replacing it.
What kind of performance increase can I expect?
The oversized high-flow filter and velocity stack are engineered to significantly increase rear-wheel horsepower and torque compared to the restrictive stock intake. Exact gains can vary based on your specific bike's setup and tuning.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | K&N |
| TYPE | Air Filters |
| SKU | 793933 |
| WEIGHT | 4.18 lb |
