---
product_id: 62993139
title: "K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952"
brand: "k&n"
price: "€ 428.27"
currency: EUR
in_stock: true
reviews_count: 13
category: "K&N"
url: https://www.desertcart.fr/products/62993139-k-and-n-cold-air-intake-system-high-flow-air
store_origin: FR
region: France
---

# Guaranteed horsepower & torque boost Easy 60-min install with all parts included Proudly made in the USA with premium quality K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952

**Brand:** k&n
**Price:** € 428.27
**Availability:** ✅ In Stock

## Summary

> 🏍️ Ignite your Harley’s soul with every breath!

## Quick Answers

- **What is this?** K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 by k&n
- **How much does it cost?** € 428.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/62993139-k-and-n-cold-air-intake-system-high-flow-air)

## Best For

- k&n enthusiasts

## Why This Product

- Trusted k&n brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tow Like a Pro:** Enhanced throttle response and uphill power make towing effortless, whether daily or on the highway.
- • **Unleash Raw Power:** Experience a dyno-tested surge in horsepower and torque that transforms your Harley’s performance.
- • **Lifetime Confidence:** Backed by a no-hassle lifetime limited warranty and guaranteed not to void your factory warranty.
- • **Plug & Play Upgrade:** Designed for a perfect fit on select 2008-2017 Harley Davidson models, with step-by-step instructions for a hassle-free install under an hour.
- • **Breathe Easy, Ride Loud:** High-flow, reusable cotton filter delivers cooler, oxygen-rich air while giving your engine that signature growl on acceleration.

## Overview

The K&N Cold Air Intake System RK-3952 is a precision-engineered, dyno-tested upgrade for 2008-2017 Harley Davidson models that guarantees increased horsepower and torque. Featuring a high-flow, washable cotton air filter and custom heat shield, it optimizes airflow for improved acceleration, towing, and engine sound. Proudly made in the USA, it installs easily in under 60 minutes and comes with a lifetime limited warranty without voiding your factory coverage.

## Description

K&N is the inventor of the Air Intake System and has over 50 years of experience in the performance filtration industry. Proudly designed and manufactured in the USA, this premium cold air intake system is specifically designed for your vehicle and is dyno tested to provide a guaranteed increase in horsepower. It features a high flow intake tube, custom heat shield, and oversized K&N Washable High-Flow Cotton Air Filter for ultimate airflow. This Intake system replaces the restrictive OEM air box to provide an improved driving experience for daily driving or towing. It installs easily in about 60 minutes and is backed by a No-Hassle Lifetime Limited Warranty and will not void your factory warranty.Compatible Vehicles:2009-2012 HARLEY DAVIDSON FLHP Road King Police2008-2016 HARLEY DAVIDSON FLHR Road King2008-2013 HARLEY DAVIDSON FLHRC Road King Classic2008-2008 HARLEY DAVIDSON FLHRSE4 Screamin Eagle Road King2008-2010 HARLEY DAVIDSON FLHT Electra Glide Standard2008-2013 HARLEY DAVIDSON FLHTC Electra Glide Classic2012-2012 HARLEY DAVIDSON FLHTCU Electra Glide Ultra Classic2008-2013 HARLEY DAVIDSON FLHTCU Ultra Classic Electra Glide2010-2010 HARLEY DAVIDSON FLHTCUSE5 CVO Ultra Classic Electra Glide2009-2013 HARLEY DAVIDSON FLHTCUTG Tri Glide Ultra Classic2011-2014 HARLEY DAVIDSON FLHTK Electra Glide Ultra Limited2015-2016 HARLEY DAVIDSON FLHTK Ultra Limited2015-2016 HARLEY DAVIDSON FLHTKL Ultra Limited Low2009-2012 HARLEY DAVIDSON FLHTP Electra Glide Police2008-2016 HARLEY DAVIDSON FLHX Street Glide2014-2016 HARLEY DAVIDSON FLHXS Street Glide Special2010-2011 HARLEY DAVIDSON FLHXXX Street Glide Trike2015-2016 HARLEY DAVIDSON FLRT Freewheeler2016-2017 HARLEY DAVIDSON FLS Softail Slim2016-2017 HARLEY DAVIDSON FLSS Softail Slim S2016-2017 HARLEY DAVIDSON FLSTC Heritage Softail Classic2016-2017 HARLEY DAVIDSON FLSTF Fat Boy2016-2017 HARLEY DAVIDSON FLSTFB Softail Fat Boy Lo2016-2017 HARLEY DAVIDSON FLSTFBS Fat Boy S2016-2017 HARLEY DAVIDSON FLSTN Softail Deluxe2008-2011 HARLEY DAVIDSON FLTR Road Glide2011-2013 HARLEY DAVIDSON FLTRU Road Glide Ultra2015-2016 HARLEY DAVIDSON FLTRX Road Glide2010-2014 HARLEY DAVIDSON FLTRX Road Glide Custom2015-2016 HARLEY DAVIDSON FLTRXS Road Glide Special2016-2017 HARLEY DAVIDSON FXSB Breakout

Review: Worth Every Dime - I replaced an Arlene Ness Big Sucker with this K&N and it was worth every dime. Way more air flow and a significantly noticeable increase in power. Instructions were a little vague but it wasn't that hard to figure out. Looks good and it gives the desired effect.
Review: Great breather for my Harley Roadglide - Ive tried a few different breathers on my 2015 Harley Road glide and when this was on sale i had to try it. Install was straight forward with clear included instructions. Parts are quality made and thought went into engineering this to fit perfect. Fit touring Harleys really well. This is my favorite to date. Included pictures. Kit comes with a K&N decal and a emission decal/ tag if needed for your state Inspection. Highly recommended.

## Features

- GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine.
- DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are included with each intake system.
- IMPROVED ENGINE SOUND - HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed.
- BETTER TOWING: K&N Air intake kit improves acceleration and uphill performance when towing by improving throttle response, overall horsepower and torque. Excellent for daily and highway driving.
- PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle.
- HIGH-FLOW REUSABLE AIR FILTER: 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt & dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100k miles under normal highway conditions.
- EASY TO INSTALL: Includes detailed, step-by-step instructions & all necessary parts- the entire air intake system can typically be installed in less than 60 minutes with basic hand tools.
- MADE IN THE USA: Proudly made in the USA for trusted quality & reliability and backed by US based customer support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BHB1W8M |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #212,673 in Automotive ( See Top 100 in Automotive ) #624 in Powersports Air Filters |
| Brand | K&N |
| Customer Reviews | 4.6 4.6 out of 5 stars (209) |
| Date First Available | March 15, 2018 |
| Exterior | Machined |
| Global Trade Identification Number | 00024844367013, 02484436701300 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.88 pounds |
| Item model number | RK-3952 |
| Manufacturer | K&N Engineering |
| Manufacturer Part Number | RK-3952 |
| Model | Intake System |
| OEM Part Number | 77-2557KP |
| Product Dimensions | 12"L x 9.5"W x 3.75"H |
| Shape | Oval |
| UPC | 024844367013 |

## Product Details

- **Brand:** K&N
- **Fit Type:** Vehicle Specific Fit
- **OEM Part Number:** 77-2557KP
- **Product Dimensions:** 12"L x 9.5"W x 3.75"H
- **Product Grade:** Performance Part

## Images

![K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2008-2017 Harley Davidson: (See Product Description for Select Models), RK-3952 - Image 1](https://m.media-amazon.com/images/I/61b6xYVjwZL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth Every Dime
*by H***R on July 12, 2025*

I replaced an Arlene Ness Big Sucker with this K&N and it was worth every dime. Way more air flow and a significantly noticeable increase in power. Instructions were a little vague but it wasn't that hard to figure out. Looks good and it gives the desired effect.

### ⭐⭐⭐⭐⭐ Great breather for my Harley Roadglide
*by P***S on June 12, 2021*

Ive tried a few different breathers on my 2015 Harley Road glide and when this was on sale i had to try it. Install was straight forward with clear included instructions. Parts are quality made and thought went into engineering this to fit perfect. Fit touring Harleys really well. This is my favorite to date. Included pictures. Kit comes with a K&N decal and a emission decal/ tag if needed for your state Inspection. Highly recommended.

### ⭐⭐⭐⭐ Inexpensive
*by B***N on June 9, 2021*

Yes, easy to install, looks fabulous. Great value for the price.. But,,,,, you will have "splash" on pipes, front of bags and, side covers. Bought in October 2020. Changing out to a new type K&N (63_1134). Will see if this one helps on fuel economy. When filled, 231 till empty, refueling at 150. Yes, I do get on the throttle stage 4 with Reinhardt headers.

## Frequently Bought Together

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-07*