Description

The K&N Filters Intake System for 0816 Harley-Davidson – Silver Top – Red Filter (KNNRK-3951S) is engineered to boost your bike’s performance with improved airflow and long-lasting filtration. Featuring a durable silver top and a reusable red filter, this intake system enhances engine responsiveness while maintaining a clean, custom appearance. It’s built for select 2008-2016 Harley-Davidson models and is perfect for riders who want both style and function in one upgrade.

Features and Specifications:

Vehicle Fitment: 2008-2016 Harley-Davidson models
Product Style: Motorcycle Intake System
Top Material: Silver Powder Coated
Air Filter Color: Red
Air Filter Height: 2.469 in (63 mm)
Estimated Horsepower Gain: 6.04 HP @ 4907 RPM
Replacement Filter: E-3987
CARB EO Number: D-269-59
Horsepower Boost: Increases engine horsepower for improved performance.
Throttle Response: Enhances throttle sensitivity and engine sound.
Durable Housing: Cast aluminum, high-volume intake in sleek black finish.
High-Flow Filter: Washable and reusable K&N cotton air filter for superior airflow and protection.
Velocity Stack: Integrated internal design for optimized air intake.
Built-In Breathers: Replaces external OE breathers with an internal system.
Quick Installation: Installs easily in 90 minutes or less.
Street Legal In All US States: Not legal for sale or use in California on any pollution-controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status of your vehicle in the application listings.