---
product_id: 9099837
title: "MagnaFlow Performance Exhaust Muffler 11386: 4\" x 9\" Body, 14\" Length | Dual 2.5\" ID Inlet and Outlet Connections | Stainless Steel with Satin finish"
brand: "magnaflow exhaust products"
price: "A$500"
currency: AUD
in_stock: true
reviews_count: 13
category: "Magna Flow Exhaust Products"
url: https://www.desertcart.com.au/products/9099837-magnaflow-performance-exhaust-muffler-11386-4-x-9-body-14
store_origin: AU
region: Australia
---

# Dyno-tested for power & flow optimization 4" x 9" oval body for signature deep sound 2.5" inlet/outlet for universal fitment MagnaFlow Performance Exhaust Muffler 11386: 4" x 9" Body, 14" Length | Dual 2.5" ID Inlet and Outlet Connections | Stainless Steel with Satin finish

**Brand:** magnaflow exhaust products
**Price:** A$500
**Availability:** ✅ In Stock

## Summary

> 🔊 Unleash the roar that sets you apart — because your ride deserves legendary sound.

## Quick Answers

- **What is this?** MagnaFlow Performance Exhaust Muffler 11386: 4" x 9" Body, 14" Length | Dual 2.5" ID Inlet and Outlet Connections | Stainless Steel with Satin finish by magnaflow exhaust products
- **How much does it cost?** A$500 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/9099837-magnaflow-performance-exhaust-muffler-11386-4-x-9-body-14)

## 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

- • **Signature MagnaFlow Sound:** Experience the iconic deep, resonating exhaust tone that turns heads and commands respect.
- • **Dyno-Proven Performance Boost:** Engineered and tested to enhance exhaust flow, unlocking measurable horsepower gains.
- • **Universal Fitment Flexibility:** 2.5" inlet/outlet and versatile design adapt seamlessly to your custom setup or vehicle.
- • **Lifetime Construction Warranty:** Invest with confidence backed by MagnaFlow’s limited lifetime warranty for enduring performance.
- • **Precision Internal Architecture:** Straight-through perforated core with two-stage acoustic packing ensures smooth, drone-free sound.

## Overview

The MagnaFlow X-PIPE Performance Muffler 11386 features a 4" x 9" oval body with a 2.5" inlet/outlet, delivering a deep, signature exhaust tone. Dyno-tested to improve engine power by optimizing exhaust flow, it incorporates a straight-through perforated core with two-stage acoustic packing for smooth, drone-free sound. Designed for universal fitment and backed by a limited lifetime warranty, this USA-made muffler is the ultimate upgrade for performance enthusiasts seeking both power and style.

## Description

Buy MagnaFlow X-PIPE Performance Muffler 11386 | 2.5" Inlet/Outlet: Mufflers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Exhaust - Installed and it sounds great! Thanks
Review: Got rid of drone and rasp!!! - Sound excellent on my v6 camaro. It got rid of the rasp and drone even gives it a somewhat exotic sound vibe to it.

## Features

- SIGNATURE MAGNAFLOW SOUND - The 4" x 9" oval body 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 4" x 9" 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 - 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 |
|---------------|-------|
| ASIN | B000XQJZ34 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #77,481 in Automotive ( See Top 100 in Automotive ) #14 in Automotive Performance Exhaust Mufflers #55 in Automotive Replacement Exhaust Mufflers |
| Brand | MagnaFlow Exhaust Products |
| Configuration | Dual/Dual |
| Customer Reviews | 4.5 4.5 out of 5 stars (482) |
| Date First Available | February 1, 2006 |
| Exterior | Satin |
| Global Trade Identification Number | 00841380000729 |
| Inlet Connection Size | 2.5 Inches |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11 pounds |
| Item dimensions L x W x H | 21.13 x 9.5 x 4.5 inches |
| Item model number | 11386 |
| Manufacturer | MagnaFlow Exhaust Products |
| Manufacturer Part Number | 11386 |
| Model | Straight-Through |
| OEM Part Number | 11386 |
| Outlet Connection Size | 2.5 Inches |
| Product Dimensions | 21.13 x 9.5 x 4.5 inches |
| Shape | Oval |
| UPC | 841380000729 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** MagnaFlow Exhaust Products
- **Item Weight:** 11 Pounds
- **Item dimensions L x W x H:** 21.13 x 9.5 x 4.5 inches
- **Material:** Stainless Steel
- **Vehicle Service Type:** Car, Truck

## Images

![MagnaFlow Performance Exhaust Muffler 11386: 4" x 9" Body, 14" Length | Dual 2.5" ID Inlet and Outlet Connections | Stainless Steel with Satin finish - Image 1](https://m.media-amazon.com/images/I/61DhSQsoAmL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the actual product shipped by Amazon have 2 1/2 inch or 2 1/4 inch inlet/outlet?**
A: This is a resonated x-pipe with 2.25 inlets and outlets

**Q: Is this a resonated x pipe??**
A: It is a resonated x pipe. Like you find it in the street version of the magnaflow cat back exhaust system.

**Q: What is the measurements of this muffler?**
A: ONFIGURATION - DUAL/DUAL
LENGTH - 14 IN
OVERALL LGTH - 20 IN
IN/OUT DIA - 2.5/2.5 IN

**Q: Can this fit on a 2019 v6 rs camaro ?**
A: Hello,

MagnaFlow Part # 11386 has a universal configuration, which means that cutting, fabrication and/or welding may be required for your vehicle. MagnaFlow recommends professional installation.

Thank you,

MagnaFlow Exhaust Products

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exhaust
*by J***I on February 26, 2026*

Installed and it sounds great! Thanks

### ⭐⭐⭐⭐⭐ Got rid of drone and rasp!!!
*by F***Y on January 4, 2026*

Sound excellent on my v6 camaro. It got rid of the rasp and drone even gives it a somewhat exotic sound vibe to it.

### ⭐⭐⭐⭐⭐ Exceded my expectations
*by W***S on December 29, 2024*

Put on my 98 GMC seirra Z71 shortbed, regular cab, with brand new crate 5.7 vortec. Had true duels with no cats and two seperate flow master super 44s. Replaced the two super 44s with single Dual inlet, Dual outlet Magnaflow X-PIPE muffler. I was everything I was hoping for and then some. Its a bit quiter now but the overall sound is much better. More deep, smooth almost high performance v8 sound. I swear the truck has a noticeable amount of more power and seems to run smoother probably because the X pipe is evening out the flow, where b4 they never met. If your looking for a more deep distinguished high-performance sound as opposed to just loud, then this is the way to go. Fantastic Mufflers.

## Frequently Bought Together

- MagnaFlow X-PIPE Performance Muffler 11386 | 2.5" Inlet/Outlet
- Upower Pack of 2 Exhaust Tip 2.5 inch Inlet 4 inch Outlet 9" Long 304 Stainless Steel 2.5" to 4" Diesel Exhaust Tailpipe Tip Double Wall Slant Cut
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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-18*