---
product_id: 7602597
title: "MagnaFlow Performance Exhaust Muffler 12278: 3\"/2.25\" Inlet/Outlet, 5x8x18\" Oval, Stainless Steel, Satin Finish"
brand: "magnaflow exhaust products"
price: "₩494828"
currency: KRW
in_stock: true
reviews_count: 8
category: "Magna Flow Exhaust Products"
url: https://www.desertcart.kr/products/7602597-magnaflow-performance-exhaust-muffler-12278-3-2-25-inlet-outlet
store_origin: KR
region: South Korea
---

# Deep signature MagnaFlow sound 3" inlet / 2.25" outlet precision fit Stainless steel corrosion resistance MagnaFlow Performance Exhaust Muffler 12278: 3"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish

**Brand:** magnaflow exhaust products
**Price:** ₩494828
**Availability:** ✅ In Stock

## Summary

> 🔥 Unleash the roar, own the road with MagnaFlow’s signature sound!

## Quick Answers

- **What is this?** MagnaFlow Performance Exhaust Muffler 12278: 3"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish by magnaflow exhaust products
- **How much does it cost?** ₩494828 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/7602597-magnaflow-performance-exhaust-muffler-12278-3-2-25-inlet-outlet)

## Best For

- magnaflow exhaust products enthusiasts

## Why This Product

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

## Key Features

- • **Iconic Deep MagnaFlow Tone:** Experience the unmistakable deep, mellow exhaust note that turns heads without overwhelming noise.
- • **Sleek Brushed Satin Finish:** Upgrade your vehicle’s look with a premium satin finish that signals performance and style.
- • **Lifetime Durability Guaranteed:** Crafted from premium stainless steel with a limited lifetime construction warranty for worry-free ownership.
- • **Precision Fit for Maximum Flow:** 3" inlet and 2.25" outlet engineered for optimal exhaust performance and compatibility.
- • **Universal Fit, Customizable Installation:** Designed for universal application—professional installation recommended to tailor fit your ride perfectly.

## Overview

The MagnaFlow Performance Exhaust Muffler 12278 features a 3" inlet and 2.25" outlet with a durable stainless steel construction and a brushed satin finish. Engineered for a deep, resonant exhaust tone, it offers universal fitment with professional installation recommended. Backed by a limited lifetime warranty, this muffler delivers lasting performance and a premium aesthetic upgrade for cars and trucks.

## Description

Fully reversible and featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhaust project. MagnaFlow's dedication to engineering and manufacturing the finest exhaust systems makes for a superior sound and driving experience. Constructed of premium materials and carefully designed for the best fitment and performance, you can have confidence in making the right choice for your vehicle.

Review: Perfect sound - Deep mellow sound at idle rowdy when you hit the skinny pedal
Review: This is a great muffler that is made out of really nice stainless ... - I installed this muffler on my 1996 Chevy Silverado and it fit well (with some slight modification). This is a great muffler that is made out of really nice stainless steel and will last a really long time. The sound is perfect, not too loud but not too quiet either but it hasn’t fully broken in yet so it will get a little louder than it is right now but it’s not a loud muffler anyway. I installed my magnaflow muffler right in place of the stock one and got an extension to connect from the muffler to the tailpipe so I have all stock pipe. It sounds really good so far and once it’s broken in it’s gonna sound even better. I’ll include a video of how it sounds on my 5.7l vortec 350 in my truck.

## Features

- BRUSHED SATIN FINISH - The brushed satin finish of this universal performance muffler will upgrade the appearance of your vehicle's exhaust system thanks to its premium aesthetic.
- DEEP SIGNATURE MAGNAFLOW SOUND - This universal muffler is engineered to produce the deep resonant exhaust tone that MagnaFlow is famous for.
- UNIVERSAL FIT - The universal configuration of this performance muffler means that cutting, fabrication and/or welding may be required. MagnaFlow recommends professional installation.
- STAINLESS STEEL CONSTRUCTION - Highly corrosion resistant, stainless steel construction incorporating CNC precision robotic manufacturing for quality fitment and longevity. Built to be the exhaust that lasts the lifetime of your vehicle.
- LIMITED LIFETIME CONSTRUCTION WARRANTY - Performance that lasts. Enjoy worry-free ownership knowing that you're backed by MagnaFlow’s limited lifetime construction warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000XQO0YI |
| Best Sellers Rank | #111,286 in Automotive ( See Top 100 in Automotive ) #25 in Automotive Performance Exhaust Mufflers #125 in Automotive Replacement Exhaust Mufflers |
| Brand | MagnaFlow Exhaust Products |
| Brand Name | MagnaFlow Exhaust Products |
| Compatible with Vehicle Type | Car, Truck |
| Configuration | Center/Dual |
| Customer Reviews | 4.6 out of 5 stars 381 Reviews |
| Global Trade Identification Number | 00841380000989 |
| Included Components | MagnaFlow Performance Exhaust Muffler 12278 |
| Inlet Connection Size | 3 Inches |
| Item Type Name | Automotive Performance Exhaust Muffler |
| Item Weight | 5 Pounds |
| Manufacturer | MagnaFlow Exhaust Products |
| Manufacturer Part Number | 12278 |
| Manufacturer Warranty Description | Limited Lifetime Construction Warranty |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Outlet Connection Size | 2.25 Inches |
| Shape | Oval |
| UPC | 841380000989 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** MagnaFlow Exhaust Products
- **Material:** Stainless Steel
- **Vehicle Service Type:** Car, Truck
- **Item Weight:** 5 Pounds
- **Configuration:** Center/Dual

## Images

![MagnaFlow Performance Exhaust Muffler 12278: 3"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish - Image 1](https://m.media-amazon.com/images/I/51zplOBd+SL.jpg)
![MagnaFlow Performance Exhaust Muffler 12278: 3"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish - Image 2](https://m.media-amazon.com/images/I/71XTolGwexL.jpg)
![MagnaFlow Performance Exhaust Muffler 12278: 3"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish - Image 3](https://m.media-amazon.com/images/I/81GdLPSsXUL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect sound
*by B***R on February 15, 2026*

Deep mellow sound at idle rowdy when you hit the skinny pedal

### ⭐⭐⭐⭐⭐ This is a great muffler that is made out of really nice stainless ...
*by A***. on January 29, 2018*

I installed this muffler on my 1996 Chevy Silverado and it fit well (with some slight modification). This is a great muffler that is made out of really nice stainless steel and will last a really long time. The sound is perfect, not too loud but not too quiet either but it hasn’t fully broken in yet so it will get a little louder than it is right now but it’s not a loud muffler anyway. I installed my magnaflow muffler right in place of the stock one and got an extension to connect from the muffler to the tailpipe so I have all stock pipe. It sounds really good so far and once it’s broken in it’s gonna sound even better. I’ll include a video of how it sounds on my 5.7l vortec 350 in my truck.

### ⭐⭐⭐⭐⭐ Magnaflow great quality and no interior drone!
*by R***S on January 2, 2023*

Replaced FlowFx muffler case cracked after 2 months of use. Order the Magnaflow same size as other muffler. Bought some band clamps too no exhaust leaks and nice sound at start up, chill driving down the road sound. Nice aggressive sound at wide open throttle. Great replacement for anyone who doesn't want drone or too loud of an exhaust system. Running 2.5 inlet dual 2.5 outlets on 2022 Tacoma truck

## Frequently Bought Together

- MagnaFlow Performance Exhaust Muffler 12278: 3"/2.25" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish
- Universal ID 2.5 Inch to OD 3 Inch Exhaust Adapter, Stainless Steel Exhaust Coupler(2 1/2" ID to 3" OD), Pipe Adapter Whole Length 3.6 Inch
- EVIL ENERGY 3.0 Inch Exhaust Clamp,Butt Joint Band Clamp Sleeve Coupler Stainless Steel for Pipes,Mufflers,Catalytic Converters 2PCs

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**Shop now:** [https://www.desertcart.kr/products/7602597-magnaflow-performance-exhaust-muffler-12278-3-2-25-inlet-outlet](https://www.desertcart.kr/products/7602597-magnaflow-performance-exhaust-muffler-12278-3-2-25-inlet-outlet)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-05*