K&N RK-3953 Street Metal Air Intake System for 2001-17 Harley-Davidson Twi

Regular price: $314.99
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Product Specification:

SKU:KNNRK-3953

MPN: RK-3953

UPC: 024844366993

Weight: 4.1 lb

Inventory: 4

Type: Cold Air Intakes

Vehicle Fitment

2001-2017 Harley-Davidson Twin-Cam, Softail, Dyna, and Touring models (all compatible trims)

Fitment Notes

Replaces stock air cleaner assembly - direct bolt-on install with supplied hardware
Built-in breather system replaces external OE breathers for cleaner installation

Features

Oversized high-flow cotton-gauze air filter for improved airflow
Cast-aluminum high-volume intake housing with integrated velocity stack
Washable, reusable, pre-oiled filter for long-term maintenance savings
Improved throttle response, engine sound, and potential horsepower gain (~4.24 HP)
Matte-black side-draft housing with sleek oval design and sanded fins
Includes all mounting hardware for straightforward installation
Direct-fit aftermarket intake system - no major modifications required
Durable powder-coated housing for corrosion resistance and rugged use

Specifications

Housing Material: Cast Aluminum (powder-coated black)
Air Filter Material: Cotton Gauze
Air Filter Height: 2.39 in (61 mm)
Overall Intake Height: 4.25 in (108 mm)
Replacement Filter Element: E-3988
Warranty: No-Hassle Lifetime Limited
Estimated Power Gain: +4.24 HP @ 4358 RPM
Weight: ~4.1 lb (1.9 kg)

Included Components

1x Cast-aluminum intake housing with velocity stack
1x High-flow cotton-gauze air filter (pre-oiled)
Complete mounting hardware kit

Product Description

The RK-3953 Street Metal Air Intake System from K&N is a premium bolt-on upgrade for Harley-Davidson Twin-Cam, Softail, Dyna, and Touring models from 2001 to 2017. By replacing the stock air cleaner with a larger, high-volume aluminum housing and a high-flow cotton-gauze filter, it improves airflow, throttle response, and engine sound while providing a measurable horsepower gain of approximately 4.24 HP.

The included washable, reusable, pre-oiled filter ensures long-term maintenance savings. Installation is straightforward with the supplied hardware, and the integrated breather system eliminates the need for external OE breather routing, providing a clean, professional look. The matte-black, side-draft housing with sanded fins offers both performance and aggressive styling, making it ideal for riders seeking enhanced airflow and visual appeal.