---
product_id: 15476366
title: "Flowmaster 815425 Outlaw Series Race Muffler"
brand: "flowmaster"
price: "$617.05"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/15476366-flowmaster-815425-outlaw-series-race-muffler
store_origin: EC
region: Ecuador
---

# Aggressive tone Stainless steel Dyno proven Flowmaster 815425 Outlaw Series Race Muffler

**Brand:** flowmaster
**Price:** $617.05
**Availability:** ✅ In Stock

## Summary

> 🏁 Rev Up Your Ride with Flowmaster!

## Quick Answers

- **What is this?** Flowmaster 815425 Outlaw Series Race Muffler by flowmaster
- **How much does it cost?** $617.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/15476366-flowmaster-815425-outlaw-series-race-muffler)

## Best For

- flowmaster enthusiasts

## Why This Product

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

## Key Features

- • **Proven Power:** Dyno tested to ensure you get the performance you crave.
- • **Universal Fit:** Versatile design fits a wide range of vehicles effortlessly.
- • **Unleash the Roar:** Experience an aggressive performance tone that turns heads.
- • **Scavenging Mastery:** Maximizes exhaust scavenging for peak performance.
- • **Lightweight Champion:** Weighing in at just 5.45 lbs, this muffler is designed for speed.

## Overview

The Flowmaster 815425 Outlaw Series Race Muffler is a high-performance exhaust solution crafted from durable stainless steel. Designed for universal fit, it delivers an aggressive tone while maximizing exhaust scavenging, ensuring your vehicle performs at its best. Weighing only 5.45 pounds, this compact muffler is dyno proven to enhance your driving experience.

## Description

815425 Outlaw Series Race Muffler

## Features

- Stainless steel construction
- Aggressive performance tone
- Maximizes exhaust scavenging
- Compact, lightweight design
- Dyno proven performance
- Fit type: Universal Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Flowmaster |
| Brand | Flowmaster |
| Model | 815425 |
| Item Weight | 5.45 pounds |
| Item model number | 815425 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 815425 |
| OEM Part Number | 815425 |

## Images

![Flowmaster 815425 Outlaw Series Race Muffler - Image 1](https://m.media-amazon.com/images/I/51OMtwMv-AL.jpg)

## Questions & Answers

**Q: What is the length of the muffler**
A: 11 inches total.

Thank you.

**Q: I have a 06 5.3 Silverado will these make my truck sound like it's cammed**
A: I put them on my 2007 Mustang and they made the exhaust sound more aggressive. Not a cammed sound though. They actually aren’t as loud as I was expecting.

**Q: Will this fit a 2005 ford f150 with a 4.6l v8?**
A: This item is considered universal with an overall length of 17 inches and an inlet/outlet size of 2.5 inches.

Thank you.

**Q: Would this fit on a 2 1/2 pipe**
A: Yes it will fit that's what i put them on

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**Shop now:** [https://www.desertcart.ec/products/15476366-flowmaster-815425-outlaw-series-race-muffler](https://www.desertcart.ec/products/15476366-flowmaster-815425-outlaw-series-race-muffler)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-01-25*