---
product_id: 80610206
title: "MagnaFlow Performance Exhaust Muffler 12289: 3\"/3\" Inlet/Outlet, 5x8x24\" Oval, Stainless Steel, Satin Finish"
brand: "magnaflow exhaust products"
price: "€ 172.49"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.ie/products/80610206-magnaflow-performance-exhaust-muffler-12289-3-3-inlet-outlet-5x8x24
store_origin: IE
region: Ireland
---

# Signature deep exhaust tone Boosts engine power Durable stainless steel build MagnaFlow Performance Exhaust Muffler 12289: 3"/3" Inlet/Outlet, 5x8x24" Oval, Stainless Steel, Satin Finish

**Brand:** magnaflow exhaust products
**Price:** € 172.49
**Availability:** ✅ In Stock

## Summary

> 🔥 Unleash the roar, own the road.

## Quick Answers

- **What is this?** MagnaFlow Performance Exhaust Muffler 12289: 3"/3" Inlet/Outlet, 5x8x24" Oval, Stainless Steel, Satin Finish by magnaflow exhaust products
- **How much does it cost?** € 172.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/80610206-magnaflow-performance-exhaust-muffler-12289-3-3-inlet-outlet-5x8x24)

## 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

- • **Lifetime Confidence:** Backed by MagnaFlow’s limited lifetime construction warranty for worry-free performance.
- • **Iconic MagnaFlow Sound:** Delivers the deep, resonating exhaust note that commands attention on the road.
- • **Dyno-Proven Power Boost:** Engineered to enhance exhaust flow for measurable horsepower gains.
- • **Universal Fitment Flexibility:** Customizable placement and orientation to perfectly fit your vehicle’s unique setup.
- • **Precision Engineered Architecture:** Straight-through perforated core with two-stage acoustic packing for smooth, aggressive tone.

## Overview

The MagnaFlow Performance Exhaust Muffler 12289 features a 3" inlet/outlet and a 5x8x24" oval stainless steel body with a satin finish. Designed with a straight-through perforated core and two-stage acoustic packing, it delivers a deep, signature MagnaFlow sound while improving exhaust flow for enhanced engine power. Its universal fitment allows versatile installation, and it comes with a limited lifetime construction warranty, ensuring durable, high-performance exhaust enhancement.

## Description

MagnaFlow Performance Exhaust Muffler 12289: 3"/3" Inlet/Outlet, 5x8x24" Oval, Stainless Steel, Satin Finish

## Features

- SIGNATURE MAGNAFLOW SOUND - The 5" x 8" Oval body of muffler 12289 is engineered to deliver the deep, resonating sound that MagnaFlow mufflers are famous for.
- DYNO-PROVEN PERFORMANCE - Extensive dyno testing is used to ensure that this 5" x 8" Oval muffler increases engine power and performance by improving the flow dynamics and evacuation of exhaust gases.
- OPTIMAL ARCHITECTURE & CONSTRUCTION - The internal architecture of this muffler features a straight-through perforated core with two-stage acoustic packing which maintains the velocity of exhaust flow while generating a smooth, deep exhaust tone. Proudly made in the USA.
- UNIVERSAL FITMENT - 12289’s universal design enables custom muffler placement and orientation to meet the particular spacing and mechanical requirements of your vehicle. Professional installation is highly recommended.
- 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 |
|---------------|-------|
| Brand | MagnaFlow Exhaust Products |
| Vehicle Service Type | Van, Car, Truck |
| Configuration | Offset/Center |
| Shape | Oval |
| Inlet Connection Size | 3 Inches |
| Outlet Connection Size | 3 Inches |
| UPC | 841380001030 |
| Manufacturer | MagnaFlow Exhaust Products |
| Global Trade Identification Number | 00841380001030 |
| OEM Part Number | 12289 |
| Model | Painted |
| Item Weight | 1.2 pounds |
| Item model number | 12289 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 12289 |

## Product Details

- **Brand:** MagnaFlow Exhaust Products
- **Vehicle Service Type:** Van, Car, Truck
- **Configuration:** Offset/Center
- **Shape:** Oval
- **Inlet Connection Size:** 3 Inches

## Images

![MagnaFlow Performance Exhaust Muffler 12289: 3"/3" Inlet/Outlet, 5x8x24" Oval, Stainless Steel, Satin Finish - Image 1](https://m.media-amazon.com/images/I/51ZIKYdNz6L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ This thing is QUIET
*by R***D on May 20, 2025*

Exactly what I was looking for on my cammed 5.3 chevy. Had a 18" magnaflow for years, but the cam swap made it super noisy sitting in city traffic & gassing it at all beyond 2.5k rpm. Simple diy install with flux core welder. Used 3" pipe, 3" i.d. adapter, band clamp for y pipe, cut pipe to attach a turndown.True off road exhaust that leaves room for bigger spare tire. Easy removal. Had to mock up the exhaust hangar & tack weld with muffler on jack stand

### ⭐⭐⭐⭐⭐ Great sounding muffler
*by G***D on June 13, 2025*

Great sound, it's not overbearing. Easy to replace yourself, I can notice a slight difference in power and acceleration and it does flow better than OEM muffler.

### ⭐⭐⭐⭐⭐ Would recommend
*by J***O on April 21, 2025*

Very nice low tone.

## Frequently Bought Together

- MagnaFlow Performance Exhaust Muffler 12289: 3"/3" Inlet/Outlet, 5x8x24" Oval, Stainless Steel, Satin Finish
- YOLANDO 3'' Mild Steel Custom Exhaust Kit Tubing Mandrel Bend Pipe Straight & U-Bend 16 Gauge Universal 8PCS

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-20*