MagnaFlow Exhaust Muffler

2011–2025 / Universal Fit for Most Vehicles with 2.25" or 2.5" Exhaust Outlets

Part #: 12266

Overview

The MagnaFlow 5x8 inch Oval Straight-Through Performance Exhaust Muffler is designed to elevate your vehicle's exhaust system with a combination of aggressive sound and proven performance. Crafted with high-quality stainless steel, this muffler is ideal for enthusiasts seeking a deep, resonant exhaust note while supporting enhanced airflow. Whether you're upgrading for a more spirited driving experience or aiming to improve your vehicle's overall performance, this muffler offers a versatile solution that fits a wide range of applications.

Built for drivers who demand durability and sound quality, the MagnaFlow 12266 muffler delivers a balanced blend of performance and tone. Its free-flowing design helps reduce backpressure, supporting increased horsepower and torque, while the signature MagnaFlow sound provides an aggressive yet refined exhaust note. This muffler is perfect for those looking to add a sporty sound to their daily driver or enhance their vehicle's performance for spirited driving.

Key Features

The MagnaFlow 12266 features innovative design elements that set it apart from standard mufflers:

• Constructed with a perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill, ensuring durability and optimal sound absorption.
• Reversible, universal 2.5/2.25 inch inlet/outlet configuration allows flexible installation in various exhaust setups.
• Oval 5x8 inch body provides a sleek, aggressive appearance while fitting seamlessly into most exhaust systems.
• Mandrel-bent, free-flowing design minimizes restrictions, promoting better exhaust flow and performance gains.
• High-quality stainless steel construction resists corrosion and withstands harsh driving conditions for long-lasting performance.
• Signature MagnaFlow sound delivers a deep, aggressive tone that enhances your vehicle's character without excessive drone.
• Designed for easy installation with minimal modifications required, making it suitable for DIY enthusiasts and professional installers alike.

Construction & Design

The MagnaFlow 12266 muffler is built with precision using mandrel-bent stainless steel tubing and a perforated core wrapped in stainless steel mesh and acoustic fiber fill. This construction ensures a durable, corrosion-resistant product that maintains its performance and appearance over time. The oval shape not only adds a distinctive aesthetic but also helps optimize sound and flow characteristics. Its reversible design offers installation flexibility, accommodating various exhaust configurations and orientations.

Installation & Fitment

The MagnaFlow 12266 muffler is designed for straightforward bolt-on installation. Its universal inlet and outlet diameters of 2.5 and 2.25 inches provide compatibility with many exhaust systems. The reversible design allows flexible orientation, simplifying the installation process. No cutting, welding, or complex modifications are generally required, making it suitable for DIY installation or professional fitting. Always verify fitment with your specific vehicle and exhaust configuration before installation.

• Reversible, universal 2.5/2.25 inch inlet/outlet configuration for flexible installation
• Mandrel-bent stainless steel tubing for optimal flow and durability
• Easy bolt-on installation with standard exhaust clamps and hardware
• No cutting, welding, or tuning required in most applications

What's Included

• Oval stainless steel performance muffler
• Clamps and mounting hardware
• Installation instructions

Ideal For

• Performance enthusiasts seeking a deep, aggressive exhaust tone
• Drivers looking to improve exhaust flow and support increased horsepower and torque
• Anyone upgrading their vehicle's exhaust system for enhanced sound and durability
• DIY installers and professional mechanics requiring a versatile, high-quality muffler