---
product_id: 40158286
title: "ROUSH 421826 2015-2017 Mustang 5.0 Liter V8 Cold Air Kit"
brand: "roush"
price: "€ 1010.35"
currency: EUR
in_stock: false
reviews_count: 9
url: https://www.desertcart.fi/products/40158286-roush-421826-2015-2017-mustang-5-0-liter-v8-cold
store_origin: FI
region: Finland
---

# No tune, bolt-on install 8.54 ft-lb torque gain 10.4 HP boost ROUSH 421826 2015-2017 Mustang 5.0 Liter V8 Cold Air Kit

**Brand:** roush
**Price:** € 1010.35
**Availability:** ❌ Out of Stock

## Summary

> 🏁 Elevate your Mustang’s roar—no tune, just pure power.

## Quick Answers

- **What is this?** ROUSH 421826 2015-2017 Mustang 5.0 Liter V8 Cold Air Kit by roush
- **How much does it cost?** € 1010.35 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/40158286-roush-421826-2015-2017-mustang-5-0-liter-v8-cold)

## Best For

- roush enthusiasts

## Why This Product

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

## Key Features

- • **Power Unleashed:** Gain a solid 10.4 horsepower and 8.54 ft-lbs torque without any tuning hassle.
- • **Track-Ready Fit:** Designed specifically for 2015-2017 Mustang 5.0, using all factory mounts and emissions lines.
- • **Precision Engineering:** Custom MAF insert ensures perfect factory signal matching for seamless integration.
- • **Plug & Play Performance:** Straight bolt-on installation with zero calibration needed—factory warranty stays intact.
- • **Durable & Low Maintenance:** Washable, oil-free dry filter with dual wire mesh layers built to last under high airflow.

## Overview

The ROUSH 421826 Cold Air Kit for 2015-2017 Mustang 5.0 delivers a measurable 10.4 HP and 8.54 ft-lb torque increase through optimized cold air induction. Engineered for a direct bolt-on fit with no tuning required, it maintains factory warranty and emissions compliance (except California). Featuring a durable, washable dry filter and precision MAF insert, this kit enhances throttle response and airflow with minimal installation effort, making it the ultimate upgrade for Mustang enthusiasts craving effortless performance gains.

## Description

The all-new 2015-2017 Mustang 5.0 Liter ROUSH V8 Cold Air Kit is more efficient air-intake than the standard stock air box. Cold air induction allows for latent potential in power and fuel efficiency that would otherwise be restricted, as well as providing reduced pressure drop. A custom tune is not required as this CAI system was engineered and tested specifically for this application ensuring MAF signal performance matches factory settings. As a straight bolt on, with no tune, it is possible to see gains of 10 horsepower and 8 foot-pounds of torque, a noticeable increase. With this kit you can also remove the MAF insert for a 105mm bore MAF and Custom tune your PCM for even more power. Our dry filter is proven to retain its shape under high airflow and is composed of an inner and outer layer of wire mesh for durability and reliable support of filtration media. The filter requires no oiling and is easily washable for re-use. Included in the kit is the air filter with clamp, injection-molded lower air box/tray with installed EPDM foam hood seal, Blow Molded clean air tubes and all required mounting hardware. The kit utilizes all factory emissions and vacuum lines. Factory mounting locations and hardware are utilized to allow for quick and easy installation.

Review: Great part - Great part for the car. Easy to install.
Review: Fits great, but requires real work to remove the noise tube! - Fits perfectly! Removing the noise tube into the cabin was the toughest thing involved with the installation. To remove the 1 nut on the firewall behind the engine holding the noise tube in place took close to 2 hours of: sweat, pain and a little blood. But was way worth it, for the fit and finish of a pro shop. If you happen to have a small child at home or .... near by... use the child to get to the bolt as the child's arms my actually fit, TOP HINT: remember to use a fender cover so your belt, or small child does not scratch the paint! I found the best way to gain access to the bolt was to squeeze my arm in right near where the oil dip stick is located, using a very small wrench as a socket wrench will not work as the welded bolt is far to long for any socket to fit over.

## Features

- Fits 2015-2017 5.0 Mustang
- Increased performance by 10.4 horsepower and 8.54 foot-pounds of torque
- Improved throttle response; Less restriction than stock intake
- No calibration required and factory warranty valid when using included 85mm MAF insert
- Not approved for sale or use in California or states that require an EO number

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00T37BY6A |
| Best Sellers Rank | #1,453,632 in Automotive ( See Top 100 in Automotive ) #720 in Automotive Replacement Ram Air Kit |
| Brand | Roush |
| Customer Reviews | 4.2 4.2 out of 5 stars (63) |
| Date First Available | February 17, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5 pounds |
| Item model number | 421826 |
| Manufacturer | ROUSH |
| Manufacturer Part Number | 421826 |
| OEM Part Number | 421826 |
| Product Dimensions | 15 x 15 x 15 inches |

## Product Details

- **Brand:** Roush
- **Fit Type:** Vehicle Specific Fit
- **Manufacturer:** ROUSH
- **OEM Part Number:** 421826
- **Product Grade:** Performance Part

## Images

![ROUSH 421826 2015-2017 Mustang 5.0 Liter V8 Cold Air Kit - Image 1](https://m.media-amazon.com/images/I/51O58lt2wVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great part
*by W***M on November 30, 2025*

Great part for the car. Easy to install.

### ⭐⭐⭐⭐⭐ Fits great, but requires real work to remove the noise tube!
*by J***H on November 20, 2017*

Fits perfectly! Removing the noise tube into the cabin was the toughest thing involved with the installation. To remove the 1 nut on the firewall behind the engine holding the noise tube in place took close to 2 hours of: sweat, pain and a little blood. But was way worth it, for the fit and finish of a pro shop. If you happen to have a small child at home or .... near by... use the child to get to the bolt as the child's arms my actually fit, TOP HINT: remember to use a fender cover so your belt, or small child does not scratch the paint! I found the best way to gain access to the bolt was to squeeze my arm in right near where the oil dip stick is located, using a very small wrench as a socket wrench will not work as the welded bolt is far to long for any socket to fit over.

### ⭐⭐⭐⭐ Needed super glue !
*by M***E on January 10, 2023*

OK my only gripe is that clips that hold the seal to the top of the cold air box are way to small for the holes and don't hold the foam rubber seal properly. I used gorilla glue to fix the issue and insure the red clips don't come loose. Very disappointed to have to do this for the price of this cold air intake. Makes me wonder if this is true Roush quality and what is going on with this product? It is listed as Roush and New on the website but since I picked the seller that was $415 verses $449 it makes me wonder...... Other than that the car sounds great now, better intake growl, and getting rid of the factory sound tube really cleaned up the engine bay and no more fake intake noise being pumped into the cabin from under the dash and the 10 hp bump in performance is nice as well on my 2016 Mustang 5.0 convertible.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.fi/products/40158286-roush-421826-2015-2017-mustang-5-0-liter-v8-cold](https://www.desertcart.fi/products/40158286-roush-421826-2015-2017-mustang-5-0-liter-v8-cold)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-19*