K&N's Street Metal™ Series High-Flow Air Intake Systems provide a good looking appearance, offer increased airflow and deliver more horsepower and torque to your Harley-Davidson motorcycle. These intake systems increase power by eliminating the stock O.E. air cleaner and replacing it with a complete High-Flow Air Intake System. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. The intake system comes with a K&N Air Filter for high air flow and long service intervals. A durable mounting gasket is also included to help absorb vibration. The K&N High-Flow Air Filter™ is washable, reusable, pre-oiled and ready for installation. Simple designed custom covers give this air intake good looks while powering down the highway or at your local show.
- Designed for Harley-Davidson motorcycles.
- Guaranteed increase in horsepower.
- Aggressive appearance while providing outstanding airflow.
- Completely replaces stock air cleaner assembly.
- Washable, oversized K&N high flow air filter.
- Provides excellent filtration and long service intervals.
- Aluminum backing plate with integrated velocity stack.
- Built-in breathers replace external O.E. breathers (where applicable).
- High-quality mirror finish aluminum cover.
- Easy install.
- K&N Drycharger available for use in extremely dusty conditions (sold separately).
- Made in U.S.A.
- Includes K&N Million Mile Limited Warranty.
Detailed Specifications:
- K&N part number: RK-3902.
- Air filter color: Red.
- Air filter height: 2.188 inches (56 mm).
- Air filter inside diameter: 5.25 inches (133 mm).
- Air filter material: Cotton gauze.
- Air filter outlet shape: Not flanged.
- Air filter shape: Teardrop.
- California restricted: NOT legal for sale or use in California.
- Clamp material: No clamps required.
- Clamp style: No clamps required.
- Clamps included: No.
- Color: Red.
- Filter material: Cotton gauze.
- Inlet diameter: 3.25 inches (83 mm).
- Mounting hardware included: Yes.
- Neck flange: 3.25 inches (83 mm).
- Overall height: 2.5 inches (64 mm).
- Product style: Motorcycle intake system.
- Replacement filter: E-3333.
- Size: 10 - 12.
- Street legal in all US states: No.
- Style: Standard.
- Top material / finish: Chrome.
- Top style: Chrome.
- Total height: 2.5 inches (64 mm).
- TUV approved (Europe): No.
- Weight: 4.8 pounds (2.2 kg).
