Description
Boost your vehicle’s performance with the K&N Filters Street Metal Air Intake System Hammer (KNNRK-3933). Designed for increased airflow and horsepower, this intake system replaces restrictive factory components with a custom-engineered intake tube and a washable, reusable air filter. It’s ideal for drivers seeking more torque and a sporty engine sound. The Hammer-style intake system is built for durability and performance, making it a strong upgrade for serious enthusiasts.
Features and Specifications:
- Color: Red
- Intake Style: Hammer
- Air Filter Height: 2.125 in (54 mm)
- Harley-Compatible: Designed specifically for Harley-Davidson motorcycles
- Estimated Horsepower Gain: 7 HP @ 5204 RPM
- Replacement Filter: HD-0800
- Filter Type: Washable and reusable cotton gauze
- Performance Boost: Increases horsepower and torque for improved engine response
- Simple Installation: Easy to install with basic tools
- USA Made: Manufactured in the United States for quality assurance
- K&N Warranty: Backed by K&N’s limited warranty for peace of mind






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