---
product_id: 582545240
title: "Flowmonster 425403-FM 2-Chamber Muffler"
brand: "flowmaster"
price: "2661 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/582545240-flowmonster-425403-fm-2-chamber-muffler
store_origin: PL
region: Poland
---

# Aggressive Sound 2-Chamber Design Durable Steel Flowmonster 425403-FM 2-Chamber Muffler

**Brand:** flowmaster
**Price:** 2661 zł
**Availability:** ✅ In Stock

## Summary

> 🚗 Rev Up Your Ride with Flowmonster!

## Quick Answers

- **What is this?** Flowmonster 425403-FM 2-Chamber Muffler by flowmaster
- **How much does it cost?** 2661 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/582545240-flowmonster-425403-fm-2-chamber-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

- • **Tailored Fit:** Vehicle-specific design ensures a perfect fit for your ride.
- • **Built to Last:** Constructed from durable 16-gauge aluminized steel for maximum longevity.
- • **Unleash the Roar:** Experience an aggressive sound that turns heads.
- • **Performance Boost:** Increases exhaust flow for enhanced performance and throttle response.
- • **Precision Engineering:** 2-chamber internal design cancels annoying high-pitch frequencies.

## Overview

The Flowmonster 425403-FM 2-Chamber Muffler is engineered to deliver an aggressive sound while effectively canceling out high-pitch frequencies. Its innovative 2-chamber design enhances exhaust flow, resulting in improved performance and throttle response. Crafted from durable 16-gauge aluminized steel and 100% MIG welded, this muffler promises exceptional strength and longevity, making it the perfect upgrade for your vehicle.

## Description

Flowmonster 425403-FM 2-Chamber Muffler

## Features

- Produces an aggressive sound
- 2-Chamber Internal Design Cancels out Annoying High Pitch Frequencies
- Increases exhaust flow for increased performance and excellent throttle response
- Constructed of durable 16-gauge aluminized steel
- 100% MIG welded for maximum strength and durability.Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Flowmaster |
| Brand | Flowmaster |
| Model | Flowmonster 2-Chamber Small Muffler |
| Product Dimensions | 33.02 x 22.86 x 12.07 cm; 100 g |
| Item model number | 425403-FM |
| Exterior | Machined |
| Manufacturer part number | 425403-FM |
| Item Weight | 100 g |

## Product Details

- **Brand:** Flowmaster
- **Item dimensions L x W x H:** 33 x 22.9 x 12.1 centimetres
- **Vehicle service type:** Car, Truck
- **UPC:** 090127063279
- **Manufacturer:** Flowmaster

## Images

![Flowmonster 425403-FM 2-Chamber Muffler - Image 1](https://m.media-amazon.com/images/I/711CoqNH8qL.jpg)
![Flowmonster 425403-FM 2-Chamber Muffler - Image 2](https://m.media-amazon.com/images/I/71Gyl6PlETL.jpg)
![Flowmonster 425403-FM 2-Chamber Muffler - Image 3](https://m.media-amazon.com/images/I/71+ph74SGuL.jpg)
![Flowmonster 425403-FM 2-Chamber Muffler - Image 4](https://m.media-amazon.com/images/I/71J-0tkef3L.jpg)
![Flowmonster 425403-FM 2-Chamber Muffler - Image 5](https://m.media-amazon.com/images/I/61TtSNR7oDL.jpg)

## Frequently Bought Together

- Flowmonster 425403-FM 2-Chamber Muffler
- Walker 36516 Exhaust System Hanger
- 2.5'' Mild Steel Custom Exhaust Kit Tubing Mandrel Bend Pipe Straight & U-Bend 16 Gauge Universal 8PCS

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**Shop now:** [https://www.desertcart.pl/products/582545240-flowmonster-425403-fm-2-chamber-muffler](https://www.desertcart.pl/products/582545240-flowmonster-425403-fm-2-chamber-muffler)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-12*