MagnaFlow Exhaust Muffler

2011–2025 Universal Fitment for Various Vehicles 2.25in. Diameter

Part #: 11255

Overview

The MagnaFlow 4x18x9in. Oval Straight-Through Performance Exhaust Muffler 11255 is designed to elevate your vehicle's exhaust system with a combination of signature sound and proven performance. Crafted for automotive enthusiasts who seek a balance of enhanced sound, improved exhaust flow, and durability, this muffler is suitable for a wide range of applications. Whether you're upgrading your daily driver or enhancing your vehicle's performance for spirited driving, this muffler delivers a noticeable upgrade over stock components.

Built with a focus on quality and performance, the MagnaFlow 11255 muffler features a free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. This construction ensures optimal exhaust flow, helping to support increased horsepower and torque while maintaining a deep, aggressive exhaust note. Its reversible design and universal 2.25-inch inlet/outlet configuration provide flexible installation options, making it compatible with various vehicle setups and custom exhaust configurations.

Key Features

The MagnaFlow 11255 muffler incorporates several advanced features that make it a top choice for performance-minded drivers:

• Constructed with high-quality stainless steel for exceptional durability and resistance to corrosion, ensuring long-lasting performance even in harsh conditions.
• Oval, straight-through design promotes unrestricted exhaust flow, reducing backpressure and enhancing engine efficiency.
• Reversible inlet/outlet configuration allows versatile installation options to suit different vehicle layouts and exhaust setups.
• Signature MagnaFlow sound delivers a deep, aggressive exhaust tone that enhances your vehicle's presence on the road.
• Engineered for easy bolt-on installation, compatible with a variety of vehicle makes and models with 2.25-inch exhaust systems.
• Acoustic fiber fill and stainless steel mesh help dampen unwanted noise while emphasizing a sporty exhaust note.
• Dyno-proven performance improvements support increased horsepower and torque, making your vehicle more responsive and enjoyable to drive.

Construction & Design

The MagnaFlow 11255 muffler features a robust stainless steel oval body with precise dimensions of 4 inches by 18 inches by 9 inches, designed to fit a variety of applications. Its straight-through perforated core is engineered for maximum flow efficiency, reducing exhaust restrictions that can hinder performance. The stainless steel mesh and acoustic fiber fill work together to absorb unwanted drone and noise, providing a refined yet aggressive sound profile. The reversible inlet/outlet design adds installation flexibility, allowing you to orient the muffler in the most suitable manner for your vehicle's exhaust routing.

Installation & Fitment

The MagnaFlow 11255 muffler is designed for straightforward bolt-on installation. Its universal 2.25-inch inlet and outlet diameters make it compatible with a wide range of vehicles and aftermarket exhaust systems. No cutting, welding, or complex modifications are required for most applications. However, due to its universal nature, some custom fitting or minor adjustments may be necessary depending on your specific vehicle configuration. Always verify fitment before installation.

• Easy bolt-on installation with standard exhaust clamps
• No cutting, drilling, or welding required in most cases
• Compatible with various vehicle makes and models with 2.25-inch exhaust systems

What's Included

• MagnaFlow 4x18x9in. Oval Straight-Through Performance Exhaust Muffler 11255
• Clamps and mounting hardware (if applicable)
• Installation instructions

Ideal For

• Performance enthusiasts seeking improved exhaust flow and sound
• Drivers looking for a durable, long-lasting muffler with a signature MagnaFlow tone
• Anyone upgrading or customizing their vehicle's exhaust system for better performance and sound