---
product_id: 1324759
title: "40 Series Chambered Muffler – 2.50\" Offset In / 2.50\" Center Out | Original 40 Series, aggressive sound, 16-gauge aluminized steel, for muscle cars, street rods, trucks, and SUVs (42541)"
brand: "flowmaster"
price: "€ 336.00"
currency: EUR
in_stock: true
category: "Flowmaster"
url: https://www.desertcart.gr/products/1324759-40-series-chambered-muffler-2-50-offset-in-2-50
store_origin: GR
region: Greece
---

# Aggressive, signature bark Two-chambered internal design 16-gauge aluminized steel durability 40 Series Chambered Muffler – 2.50" Offset In / 2.50" Center Out | Original 40 Series, aggressive sound, 16-gauge aluminized steel, for muscle cars, street rods, trucks, and SUVs (42541)

**Brand:** flowmaster
**Price:** € 336.00
**Availability:** ✅ In Stock

## Summary

> 🔥 Own the street with the sound that commands attention!

## Quick Answers

- **What is this?** 40 Series Chambered Muffler – 2.50" Offset In / 2.50" Center Out | Original 40 Series, aggressive sound, 16-gauge aluminized steel, for muscle cars, street rods, trucks, and SUVs (42541) by flowmaster
- **How much does it cost?** € 336.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/1324759-40-series-chambered-muffler-2-50-offset-in-2-50)

## 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 Endure:** 16-gauge aluminized steel with MIG welding ensures long-lasting heat and vibration resistance.
- • **Boosted Performance Metrics:** Reduces back pressure to increase horsepower, torque, and throttle response.
- • **Unmistakable Aggressive Sound:** Turn heads with Flowmaster’s legendary bold bark that defines street presence.
- • **Precision Two-Chambered Design:** Engineered for that iconic Flowmaster tone and enhanced exhaust flow.
- • **Universal Fit for Custom Builds:** Versatile inlet/outlet configurations simplify installation on muscle cars, trucks, and SUVs.

## Overview

The Flowmaster 40 Series Chambered Muffler (2.50" Offset In / 2.50" Center Out) delivers the iconic aggressive exhaust tone muscle car and truck enthusiasts crave. Crafted from durable 16-gauge aluminized steel with a proven two-chambered design, it enhances horsepower and torque by optimizing airflow and reducing back pressure. Designed for universal fitment, it’s perfect for custom builds seeking legendary sound and lasting performance.

## Description

Buy Flowmaster 40 Series Chambered Muffler – 2.50" Offset In / 2.50" Center Out | Original 40 Series, aggressive sound, 16-gauge aluminized steel, for muscle cars, street rods, trucks, and SUVs (42541): Mufflers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- LEGENDARY SOUND: This is the original Flowmaster muffler that enthusiasts know and love! Famous for its bold, aggressive bark and signature tone. It delivers the unmistakable attitude and street presence that made Flowmaster a legend.
- TWO-CHAMBERED INTERNAL DESIGN: Flowmaster’s classic two-chambered layout delivers that bold, aggressive exhaust sound Flowmaster is known for. Perfect for muscle cars, street rods, trucks, off-road rigs, and custom builds.
- PROVEN PERFORMANCE: Enhances airflow and reduces back pressure to help boost horsepower, torque, and throttle response.
- BUILT TO LAST: Made from 16-gauge aluminized steel and fully MIG-welded to withstand high heat and vibration with no internal packing to blow out or wear down.
- UNIVERSAL FITMENT: Designed for custom and modified exhaust systems, with multiple inlet/outlet sizes and configurations (center/offset, dual) for simplified installation and optimal fit.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000182DMO |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #27,059 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Performance Exhaust Mufflers #281 in Automotive Emission & Exhaust Products |
| Brand Name | Flowmaster |
| Compatible with Vehicle Type | Car |
| Configuration | Center/Offset |
| Customer Reviews | 4.7 4.7 out of 5 stars (427) |
| Global Trade Identification Number | 00700042010332, 00700042029426 |
| Included Components | Flowmaster 42541 40 Series Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound |
| Item Dimensions | 20.25 x 10.45 x 4.55 inches |
| Item Type Name | Flowmaster 42541 40 Series Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound |
| Item Weight | 9.5 pounds |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 42541 |
| Manufacturer Warranty Description | Check with the manufacturer |
| Material Type | Alloy Steel |
| Model Number | 42541 |
| Number of Items | 1 |
| OEM Equivalent Part Number | 42541 |
| Part Interchange Info | 42541 |
| Shape | Oval |
| UPC | 700042010332 700042029426 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Flowmaster
- **Item Weight:** 9.5 pounds
- **Item dimensions L x W x H:** 20.25 x 10.45 x 4.55 inches
- **Material:** Alloy Steel
- **Vehicle Service Type:** Car

## Images

![40 Series Chambered Muffler – 2.50" Offset In / 2.50" Center Out | Original 40 Series, aggressive sound, 16-gauge aluminized steel, for muscle cars, street rods, trucks, and SUVs (42541) - Image 1](https://m.media-amazon.com/images/I/71u5C80+TOL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Will these fit a 2004 ford crown victoria interceptor ?**
A: universal mufflers do not directly fit any application . They require measuring , cutting adding pipe etc . Direct fitments are under cat back systems .

**Q: Will this fit my 1997 k1500?**
A: Yes, the Flowmaster 42541 40 Series Muffler - 2.50 Offset IN / 2.50 Center OUT - Aggressive Sound, Black will fit your 1997 K1500. It is a universal muffler, so it can be fitted to any vehicle with a 2.50 inch exhaust system.

However, it is important to note that the Flowmaster 40 Series mufflers are known for being loud. If you are looking for a more subdued sound, you may want to consider a different muffler series, such as the 50 or 60 Series.

**Q: spec say it wont fit but it has the same demensions and intake and oulet pipe size, will it fit on my 1997 dodge ram 1500**
A: If the pipe inlet is 2.5 inches and the pipe outlet is 2.5 inches, it will work.

**Q: Is this muffler lound on the inside**
A: It dose resonate inside the car quite a bit

## Frequently Bought Together

- Flowmaster 42541 40 Series Chambered Muffler
- EVIL ENERGY 2.5 Inch Exhaust Clamp,2 1/2" Butt Joint Band Clamp Sleeve Coupler Stainless Steel for Pipes,Mufflers,Catalytic Converters 2PC
- Walker 36272 Exhaust System Hanger

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**Shop now:** [https://www.desertcart.gr/products/1324759-40-series-chambered-muffler-2-50-offset-in-2-50](https://www.desertcart.gr/products/1324759-40-series-chambered-muffler-2-50-offset-in-2-50)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-01*