K&N Oval Red 9in Intake System — Fits Harley Davidson 1999-2007

SKU: KNNRK-3910-1

About K&N Engineering K&N has been the world's leader in ...Read more

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Sale price$314.99
3140 ENTRIES10X
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N RK Series Oval Air Intake System - Red (9")

Unleash the power of your Harley Davidson Twin Cam engine with the K&N RK Series Oval Air Intake System. Engineered for performance, this system is built around K&N's legendary High-Flow Air Filter, renowned for its exceptional airflow and filtration capabilities. The RK-3910-1 features an innovative, powder-coated billet aluminum back plate that eliminates external breathers and incorporates a dyno-tuned velocity stack. This design significantly increases airflow to your engine, resulting in a noticeable boost in horsepower and torque without compromising filtration efficiency.

Performance and Design:

  • Increased Horsepower: Optimized airflow design delivers more power to your Twin Cam engine.
  • High-Flow Air Filter: Utilizes K&N's premium air filter for superior performance and protection.
  • Billet Aluminum Back Plate: Features a durable, powder-coated finish and integrated velocity stack for enhanced air intake.
  • Retains Stock Appearance: Designed to use your motorcycle's original air cleaner cover for a factory look.
  • Dyno-Tuned: Velocity stack is precisely tuned to maximize performance gains.
  • Larger Filter & Spacers: This RK-3910-1 model includes a larger air filter and longer spacers compared to the RK-3909-1 for even greater performance potential.

This K&N intake system is specifically designed for a wide range of Harley Davidson models from 1999 to 2007, including the Road King, Electra Glide, Heritage Softail, and Fat Boy. Installation is straightforward, allowing you to quickly upgrade your bike's performance. Experience the difference K&N engineering makes and elevate your riding experience. Find this and other high-performance parts at GGCRACING.

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

K&N RK Series Oval Air Intake System - Red (9")

Unleash the power of your Harley Davidson Twin Cam engine with the K&N RK Series Oval Air Intake System. Engineered for performance, this system is built around K&N's legendary High-Flow Air Filter, renowned for its exceptional airflow and filtration capabilities. The RK-3910-1 features an innovative, powder-coated billet aluminum back plate that eliminates external breathers and incorporates a dyno-tuned velocity stack. This design significantly increases airflow to your engine, resulting in a noticeable boost in horsepower and torque without compromising filtration efficiency.

Performance and Design:

  • Increased Horsepower: Optimized airflow design delivers more power to your Twin Cam engine.
  • High-Flow Air Filter: Utilizes K&N's premium air filter for superior performance and protection.
  • Billet Aluminum Back Plate: Features a durable, powder-coated finish and integrated velocity stack for enhanced air intake.
  • Retains Stock Appearance: Designed to use your motorcycle's original air cleaner cover for a factory look.
  • Dyno-Tuned: Velocity stack is precisely tuned to maximize performance gains.
  • Larger Filter & Spacers: This RK-3910-1 model includes a larger air filter and longer spacers compared to the RK-3909-1 for even greater performance potential.

This K&N intake system is specifically designed for a wide range of Harley Davidson models from 1999 to 2007, including the Road King, Electra Glide, Heritage Softail, and Fat Boy. Installation is straightforward, allowing you to quickly upgrade your bike's performance. Experience the difference K&N engineering makes and elevate your riding experience. Find this and other high-performance parts at GGCRACING.

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