---
product_id: 1323633
title: "40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42543)"
brand: "flowmaster"
price: "₩346804"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/1323633-40-series-original-chambered-muffler-2-50-offset-in-2
store_origin: KR
region: South Korea
---

# Aggressive sound 16 gauge steel Street/Strip ready 40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42543)

**Brand:** flowmaster
**Price:** ₩346804
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Drive with Flowmaster's Power!

## Quick Answers

- **What is this?** 40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42543) by flowmaster
- **How much does it cost?** ₩346804 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/1323633-40-series-original-chambered-muffler-2-50-offset-in-2)

## 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

- • **Sleek Design:** Oval shape and offset configuration for a seamless fit and stylish look.
- • **Built to Last:** Crafted from durable, fully welded 16 gauge aluminized steel for unmatched longevity.
- • **Unleash the Roar:** Transform your ride with an aggressive exterior exhaust tone that commands attention.
- • **Interior Resonance:** Experience a noticeable interior resonance that enhances your driving experience.
- • **Versatile Performance:** Perfect for both street and off-road applications, ensuring you conquer any terrain.

## Overview

The Flowmaster 42543 40 Series Chambered Muffler is engineered for performance enthusiasts, featuring a robust 16 gauge aluminized steel construction that ensures durability. With its aggressive sound profile and noticeable interior resonance, this muffler is perfect for both street and off-road applications, making it a versatile choice for any vehicle. Its sleek oval design and offset configuration provide a seamless fit, enhancing both aesthetics and performance.

## Description

40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42543)

## Features

- Durable fully welded 16 gauge aluminized steel
- Aggressive Sound Exterior Exhaust Tone
- Noticeable interior resonance
- Excellent Street/Strip and Off Road application

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Flowmaster |
| Item dimensions L x W x H | 19.8 x 10.2 x 4.5 inches |
| Configuration | Offset/Offset |
| Shape | Oval |
| UPC | 700042029433 771395696528 700042010356 |
| Manufacturer | Flowmaster |
| Global Trade Identification Number | 00700042029433, 00700042010356 |
| OEM Part Number | 42543 |
| Item Package Dimensions L x W x H | 19.5 x 10.2 x 5 inches |
| Package Weight | 4.56 Kilograms |
| Item Dimensions  LxWxH | 19.8 x 10.2 x 4.5 inches |
| Brand Name | Flowmaster |
| Warranty Description | Warranty |
| Model Name | Flowmaster 42543 2.5In(O)/Out(O) 40 Series Muffler |
| Color | Black |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Part Number | 42543 |
| Included Components | Flowmaster 42543 2.5In(O)/Out(O) 40 Series Muffler |
| Size | No Size |

## Product Details

- **Brand:** Flowmaster
- **Item dimensions L x W x H:** 19.8 x 10.2 x 4.5 inches
- **Configuration:** Offset/Offset
- **Shape:** Oval
- **UPC:** 700042029433 771395696528 700042010356

## Images

![40 Series Original Chambered Muffler – 2.50” Offset In / 2.50” Offset Out – Aggressive Sound – 16-Gauge Aluminized Steel – For Muscle Cars, Street Rods, Trucks, SUVs & Strip Builds (42543) - Image 1](https://m.media-amazon.com/images/I/71rf3giQfXL.jpg)

## Frequently Bought Together

- Flowmaster 42543 Flowmaster 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.kr/products/1323633-40-series-original-chambered-muffler-2-50-offset-in-2](https://www.desertcart.kr/products/1323633-40-series-original-chambered-muffler-2-50-offset-in-2)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-04*