MagnaFlow Exhaust Muffler

Universal 4x9in. Oval 2.5in. Offset Multi-Chamber Performance Exhaust Muffler (13266)

Part #: 13266

Overview

The MagnaFlow XL 4x9-inch Oval Multi-Chamber Performance Exhaust Muffler is designed for automotive enthusiasts seeking a combination of powerful sound, reliable performance, and versatile installation options. Crafted with precision and engineered for durability, this muffler enhances your vehicle’s exhaust system while delivering the signature MagnaFlow tone that has made the brand a trusted name in the industry. Whether you're upgrading for improved sound or performance, this muffler is suitable for a wide range of applications and vehicle types.

Built with a straight-through, weight-optimized reversible design, the 13266 muffler provides a balanced blend of flow efficiency and sound quality. Its multi-chamber construction with perforated stainless steel core, baffles, and tuning gates ensures a deep, aggressive exhaust note without excessive drone, making it ideal for daily drivers and performance enthusiasts alike. The oval-shaped body and universal 2.5-inch inlet/outlet layout offer flexible installation options, accommodating various vehicle configurations and spacing requirements.

Key Features

The MagnaFlow 13266 muffler incorporates advanced design and high-quality materials to deliver superior performance and durability. Key features include:

• Multi-chamber, straight-through design with perforated stainless steel core for optimized exhaust flow and sound tuning.
• Oval-shaped body measuring 4x9 inches, providing a sleek appearance and versatile fitment options.
• Universal 2.5-inch inlet and outlet diameters, compatible with a wide range of vehicles and exhaust setups.
• Weight-optimized construction to reduce overall vehicle weight and improve handling.
• Reversible design allowing for flexible installation and customization based on your vehicle's layout.
• Durable stainless steel construction resistant to corrosion and heat, ensuring long-lasting performance.
• Signature MagnaFlow sound—deep, aggressive, and refined—perfect for those seeking an enhanced exhaust note.
• Dyno-proven performance gains, supporting improved exhaust flow and horsepower potential.
• Designed for easy bolt-on installation with minimal modifications required.

Construction & Design

The MagnaFlow 13266 muffler features a high-quality stainless steel core and housing, ensuring resistance to corrosion and high temperatures. Its multi-chamber configuration is engineered to produce a deep, resonant exhaust tone while minimizing unwanted drone at cruising speeds. The oval body shape not only enhances aesthetic appeal but also allows for flexible placement within various exhaust systems. The weight-optimized design reduces overall vehicle weight, contributing to improved handling and efficiency.

Manufactured with precision TIG welding and CAD-developed internal components, this muffler guarantees a consistent, high-quality build. Its reversible design simplifies installation, enabling you to orient the muffler for optimal fitment and sound tuning. The perforated core and tuning gates work together to balance flow and sound, providing a powerful yet refined exhaust note that complements your vehicle's performance characteristics.

Installation & Fitment

This universal muffler is designed for straightforward bolt-on installation. Its 2.5-inch inlet and outlet diameters are compatible with many aftermarket and OEM exhaust systems. The oval shape and flexible mounting options allow for easy integration into various vehicle configurations. No cutting, drilling, or complex modifications are generally required, making it suitable for DIY enthusiasts and professional installers alike.

• Reversible design for flexible orientation
• Simple bolt-on installation with standard tools
• Compatible with a wide range of vehicles with 2.5-inch exhaust piping

What's Included

• MagnaFlow 4x9-inch Oval Multi-Chamber Performance Exhaust Muffler (13266)
• All necessary clamps and mounting hardware
• Installation instructions

Ideal For

• Performance enthusiasts seeking a deep, aggressive exhaust tone
• Daily drivers looking for a reliable upgrade over stock mufflers
• Custom exhaust builders aiming for versatile fitment and high-quality construction
• Anyone wanting to improve exhaust flow and support increased horsepower