---
product_id: 1380213
title: "Flowmaster 815425S Outlaw Series Race Muffler"
brand: "flowmaster"
price: "₱26047"
currency: PHP
in_stock: true
category: "Flowmaster"
url: https://www.desertcart.ph/products/1380213-flowmaster-815425s-outlaw-series-race-muffler
store_origin: PH
region: Philippines
---

# Polished finish with embossed logo No internal packing - zero blowout risk Compact design - fits tight spaces Flowmaster 815425S Outlaw Series Race Muffler

**Brand:** flowmaster
**Price:** ₱26047
**Availability:** ✅ In Stock

## Summary

> 🔥 Dominate the streets with the Outlaw roar!

## Quick Answers

- **What is this?** Flowmaster 815425S Outlaw Series Race Muffler by flowmaster
- **How much does it cost?** ₱26047 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/1380213-flowmaster-815425s-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

- • **Built to Last:** No internal packing means no blowouts, ensuring durability under pressure
- • **Signature Style:** Polished exterior with embossed Flowmaster logo for that premium, head-turning look
- • **Sleek & Compact:** Designed to fit directly on header collectors or existing exhausts without bulk
- • **Proven Performance:** Loved by truck enthusiasts for deep, rumbling idle and insane throttle response
- • **Race-Ready Power Boost:** Unleash aggressive sound and performance with no decibel limits

## Overview

The Flowmaster 815425S Outlaw Series Race Muffler is a compact, durable exhaust component designed for racing applications without decibel restrictions. Featuring no internal packing to prevent blowouts, a polished finish, and an embossed logo, it delivers a deep, aggressive sound that enhances throttle response and fits seamlessly onto header collectors or existing exhaust systems.

## Description

Outlaw mufflers are designed to be connected directly to the header collectors or can be added into an existing exhaust system. Recommended for racing applications where a muffler is required without a set decibel limit to be met.

## Features

- No internal packing to blowout
- Compact Design
- Polished
- Embossed Flowmaster logo
- Minimal decibel reduction - race application where muffler rules are in effect

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008KWIFKW |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #948,164 in Automotive ( See Top 100 in Automotive ) #287 in Automotive Performance Exhaust Mufflers #20,750 in Automotive Emission & Exhaust Products |
| Brand | Flowmaster |
| Brand Name | Flowmaster |
| Compatible with Vehicle Type | Car |
| Customer Reviews | 4.6 out of 5 stars 113 Reviews |
| Global Trade Identification Number | 00700042027439 |
| Included Components | Flowmaster 815425S Outlaw Race 2.50" Center In/2.50" Center Out 409S Short Muffler with Aggressive Sound |
| Item Dimensions | 17 x 5.13 x 5.13 inches |
| Item Type Name | Flowmaster 815425S Outlaw Race 2.50" Center In/2.50" Center Out 409S Short Muffler with Aggressive Sound |
| Item Weight | 4 pounds |
| Item dimensions L x W x H | 17 x 5.13 x 5.13 inches |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 815425S |
| Manufacturer Warranty Description | No Warranty |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | 815425S |
| Number of Items | 1 |
| OEM Equivalent Part Number | 815425S |
| Part Interchange Info | 815425S |
| Shape | Round |
| UPC | 700042027439 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Flowmaster
- **Item Weight:** 3.3 Pounds
- **Material:** Stainless Steel
- **Shape:** Round
- **Vehicle Service Type:** Car

## Images

![Flowmaster 815425S Outlaw Series Race Muffler - Image 1](https://m.media-amazon.com/images/I/51PFJBJT3ZL.jpg)
![Flowmaster 815425S Outlaw Series Race Muffler - Image 2](https://m.media-amazon.com/images/I/418nDmQFnbL.jpg)
![Flowmaster 815425S Outlaw Series Race Muffler - Image 3](https://m.media-amazon.com/images/I/41+UlJsQR0L.jpg)

## Frequently Bought Together

- Flowmaster 815425S Outlaw Series Race Muffler
- Upower Pack of 2 Exhaust Tip 2.5 inch Inlet 4 inch Outlet 9" Long 304 Stainless Steel 2.5" to 4" Diesel Exhaust Tailpipe Tip Double Wall Slant Cut
- Flowmaster 815425 Outlaw Series Race Muffler

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**Shop now:** [https://www.desertcart.ph/products/1380213-flowmaster-815425s-outlaw-series-race-muffler](https://www.desertcart.ph/products/1380213-flowmaster-815425s-outlaw-series-race-muffler)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-11-14*