---
product_id: 93649556
title: "MagnaFlow Performance Exhaust Muffler 12288: 3\"/2.5\" Inlet/Outlet, 5x8x18\" Oval, Stainless Steel, Satin Finish"
brand: "magnaflow exhaust products"
price: "฿35403"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/93649556-magnaflow-performance-exhaust-muffler-12288-3-2-5-inlet-outlet
store_origin: TH
region: Thailand
---

# Signature Sound Universal Fit Dyno-Proven Power MagnaFlow Performance Exhaust Muffler 12288: 3"/2.5" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish

**Brand:** magnaflow exhaust products
**Price:** ฿35403
**Availability:** ✅ In Stock

## Summary

> 🚗 Elevate Your Drive with MagnaFlow's Signature Sound!

## Quick Answers

- **What is this?** MagnaFlow Performance Exhaust Muffler 12288: 3"/2.5" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish by magnaflow exhaust products
- **How much does it cost?** ฿35403 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/93649556-magnaflow-performance-exhaust-muffler-12288-3-2-5-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

- • **Built to Last:** Enjoy peace of mind with a limited lifetime construction warranty.
- • **Boost Your Ride:** Dyno-tested to enhance engine performance and exhaust flow.
- • **Tailored for You:** Universal fitment allows for custom installation on any vehicle.
- • **Unleash the Roar:** Experience the iconic MagnaFlow sound that turns heads.
- • **Crafted for Excellence:** Straight-through design ensures optimal exhaust velocity.

## Overview

The MagnaFlow Performance Exhaust Muffler 12288 features a 5" x 8" oval design, crafted from stainless steel with a satin finish. Engineered for optimal performance, this muffler enhances exhaust flow and delivers the deep, resonating sound MagnaFlow is renowned for. With a universal fitment and a limited lifetime warranty, it's the perfect upgrade for any vehicle enthusiast.

## Description

MagnaFlow Performance Exhaust Muffler 12288: 3"/2.5" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish

## Features

- SIGNATURE MAGNAFLOW SOUND - The 5" x 8" Oval body of muffler 12288 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 - 12288’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 |
|---------------|-------|
| Manufacturer | MagnaFlow Exhaust Products |
| Brand | MagnaFlow Exhaust Products |
| Model | Straight-Through |
| Product Dimensions | 63.5 x 25.1 x 13.97 cm; 2.27 kg |
| Item model number | 12288 |
| Exterior | Satin |
| Manufacturer part number | 12288 |
| OEM Part Number | 12288 |
| Item Weight | 2.27 kg |

## Product Details

- **Brand:** MagnaFlow Exhaust Products
- **Material:** Stainless Steel
- **Item dimensions L x W x H:** 63.5 x 25.1 x 14 centimetres
- **Vehicle service type:** Car, Truck
- **Item weight:** 2.27 kg

## Images

![MagnaFlow Performance Exhaust Muffler 12288: 3"/2.5" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish - Image 1](https://m.media-amazon.com/images/I/41t1U7K4NwL.jpg)

## Available Options

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

## Questions & Answers

**Q: What are the inlet and outlet sizes?  Looking for 3" & 31/2**
A: 3" inlet and 2.5" outlets

**Q: you can make this dual exhaust right?**
A: This muffler will allow you to make a single exhaust system into a dual exhaust system from the rear of the catalytic converter back.It is also a VERY GOOD replacement for factory mufflers in a single in/dual out setup.For instance, this muffler was used in the place of a factory muffler on a 2010 Dodge Ram Hemi - gives fantastic tone without being too loud.

**Q: hello, is that Muffler overall length 24 or 20 inches ? because that number part 12288 description is different on the MagnaFlow website !**
A: Always refer to the manufacturers website for the accurate information about there products. Internet sellers list many thousands of products. Every internet seller makes listing errors with pictures and content. The body of this muffler is 18" and 24" to the tip of the inlet and outlet. Thank you

**Q: What modifications and/or extensions were needed for instalation since muffler is shorter than stock.  And outlets are spaced farther apart???**
A: I have a local dealer Mad Hatter in Fort Lauderdale Florida install dual exhaust after the muffler. They did a fantastic job.

## Frequently Bought Together

- MagnaFlow Performance Exhaust Muffler 12288: 3"/2.5" Inlet/Outlet, 5x8x18" Oval, Stainless Steel, Satin Finish
- EVIL ENERGY 2.5 Inch Exhaust Clamp,2 1/2" Butt Joint Band Clamp Sleeve Coupler Stainless Steel for Pipes,Mufflers,Catalytic Converters 2PC
- EVIL ENERGY 2.5 Inch Exhaust Clamp,2 1/2" Narrow Band Muffler Clamp Stainless Steel for Pipes,Mufflers,Catalytic Converters 2PCS

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/93649556-magnaflow-performance-exhaust-muffler-12288-3-2-5-inlet-outlet](https://www.desertcart.co.th/products/93649556-magnaflow-performance-exhaust-muffler-12288-3-2-5-inlet-outlet)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-23*