---
product_id: 40636895
title: "K&N Cold Air Intake System: Powersports High-Flow Air Filter, RK-3950"
brand: "k&n"
price: "MX$16602"
currency: MXN
in_stock: true
reviews_count: 11
category: "K&N"
url: https://www.desertcart.mx/products/40636895-k-and-n-cold-air-intake-system-powersports-high-flow
store_origin: MX
region: Mexico
---

# High-flow washable cotton air filter Guaranteed horsepower & torque boost Dyno-tested for proven performance K&N Cold Air Intake System: Powersports High-Flow Air Filter, RK-3950

**Brand:** k&n
**Price:** MX$16602
**Availability:** ✅ In Stock

## Summary

> 🏍️ Feel the roar, own the road with K&N Cold Air Intake!

## Quick Answers

- **What is this?** K&N Cold Air Intake System: Powersports High-Flow Air Filter, RK-3950 by k&n
- **How much does it cost?** MX$16602 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/40636895-k-and-n-cold-air-intake-system-powersports-high-flow)

## 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:** Improved throttle response and uphill power make towing effortless and reliable.
- • **Tested & Trusted:** Wheel-based dynamometer testing ensures real-world performance gains you can count on.
- • **Command Attention:** Enhanced engine growl on acceleration delivers an unmistakable presence on the road.
- • **Unleash Raw Power:** Experience a guaranteed increase in horsepower and torque with a less restrictive airflow path.
- • **Lifetime Confidence:** No-hassle lifetime limited warranty protects your investment without voiding factory coverage.

## Overview

The K&N Cold Air Intake System RK-3950 is a vehicle-specific, dyno-tested upgrade designed for select 2013-2015 Harley Davidson Softail models. Featuring a high-flow washable cotton air filter and custom heat shield, it boosts horsepower and torque by optimizing airflow while enhancing engine sound. Easy to install in about an hour, it improves daily driving and towing performance without voiding your factory warranty, backed by a lifetime limited warranty.

## 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:2013-2015 HARLEY DAVIDSON FLSTC Heritage Softail Classic2013-2015 HARLEY DAVIDSON FLSTF Fat Boy2013-2015 HARLEY DAVIDSON FLSTFB Softail Fat Boy Lo2013-2015 HARLEY DAVIDSON FLSTN Softail Deluxe2013-2015 HARLEY DAVIDSON FXSB Breakout2013-2014 HARLEY DAVIDSON FXSBSE CVO Breakout

Review: Perfect fitment better throttle response - Looks fantastic! Ordered this to replace a screamin eagle intake. At 5'8" the stock "football" cover really got in the way of my knee with forward controls, the k&n is still a little in the way but not nearly as bad. I immediately noticed a snappier throttle response and the ol butt dyno says it's got a little more power. Fitment on my 09 fxdb was flawless and installation was a breeze. The included instructions even have color photos, took 20-30 minutes to install with absolutely zero issues.
Review: 2008 FXDF Fat Bob - Easy install and looks great on 2008 Fat Bob. Changes sound a bit. Not noticing a difference in performance but bike does backfire less than before. Drag Pipes were already installed and I have yet to tune. At this point, running well and don’t see a need for tune. Overall good purchase, nice look and maybe a bit more power.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06WLHPTKB |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #1,264,859 in Automotive ( See Top 100 in Automotive ) #1,252 in Automotive Replacement Air Intake Filters |
| Brand | K&N |
| Brand Name | K&N |
| Customer Reviews | 4.6 out of 5 stars 49 Reviews |
| Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 00024844364647 |
| Included Components | Air Filter^Back Plate^Air Scoop^Air Scoop Base^Breather Bolt (2)^Literature Pack^Parts Kit |
| Item Highlight | Fits Select 2013-2015 HARLEY DAVIDSON: FLSTN Softail Deluxe/FLSTC Herritage Softail Classic (See Product Description) |
| Item Type Name | Intake System (Harley Davidson) |
| Item Weight | 4.7 pounds |
| Manufacturer | K&N Engineering |
| Manufacturer Part Number | RK-3950 |
| Manufacturer Warranty Description | 3 Months |
| Model Number | RK-3950 |
| Number of Items | 1 |
| OEM Equivalent Part Number | RK-3950 |
| OEM Part Number | RK-3950 |
| Product Grade | Performance Part |
| UPC | 024844364647 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** K&N
- **Fit Type:** Vehicle Specific Fit
- **Number of Items:** 1
- **OEM Part Number:** RK-3950
- **Product Grade:** Performance Part

## Images

![K&N Cold Air Intake System: Powersports High-Flow Air Filter, RK-3950 - Image 1](https://m.media-amazon.com/images/I/61gZ-2I5IPL.jpg)

## Questions & Answers

**Q: If I get this item Do I need fp3?**
A: If you have a good free flow exhaust and this k&n setup I recommend having one so you don't risk leaning out your bike. Otherwise if all you do is change the filter and housing then, no.

**Q: Does this affect riding leg position?**
A: Yes and no. My leg rests up against it while I ride vs the stock one. But you don’t even notice it. That’s on a 05 Electra glide.

**Q: Is there a rain sock for it?**
A: No K&N does not make a rain sock for this intake.

**Q: will this fit 05 electra glide?**
A: Yes for sure it will

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fitment better throttle response
*by D***R on April 21, 2024*

Looks fantastic! Ordered this to replace a screamin eagle intake. At 5'8" the stock "football" cover really got in the way of my knee with forward controls, the k&n is still a little in the way but not nearly as bad. I immediately noticed a snappier throttle response and the ol butt dyno says it's got a little more power. Fitment on my 09 fxdb was flawless and installation was a breeze. The included instructions even have color photos, took 20-30 minutes to install with absolutely zero issues.

### ⭐⭐⭐⭐⭐ 2008 FXDF Fat Bob
*by T***M on October 5, 2022*

Easy install and looks great on 2008 Fat Bob. Changes sound a bit. Not noticing a difference in performance but bike does backfire less than before. Drag Pipes were already installed and I have yet to tune. At this point, running well and don’t see a need for tune. Overall good purchase, nice look and maybe a bit more power.

### ⭐⭐⭐⭐⭐ Great in every way
*by Ø***R on June 29, 2023*

Delivery with Express, great job. Look is very suitable for my taste. Must do a Mapping for the Bike now. The only thing is, you need a bypass plug because my 2014 Twin Cam has a Connection. But no problem with the Bypass, 20 Euro.

## Frequently Bought Together

- K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2001-2017 Harley Davidson: (See Product Description for Selected Models) RK-3950
- NGK Iridium IX DCPR7EIX Spark Plugs Compatible with 1999-2016 Harley Davidson Twin Cam (Pair)

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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-10-22*