MagnaFlow Performance Muffler

2011–2025 Universal Fitment for Most Vehicles with 5-inch Inlet/Outlet

Part #: 12776

Overview

The MagnaFlow 7x7x14-inch Round Straight-Through Performance Muffler is designed to elevate your vehicle's exhaust system with a combination of aggressive sound and proven performance gains. Crafted for automotive enthusiasts who seek a deep, resonant exhaust note and enhanced flow characteristics, this muffler is suitable for a wide range of applications. Whether you're upgrading for a more spirited driving experience or seeking a high-quality replacement, this muffler delivers on both sound and performance.

Built with durability and efficiency in mind, the MagnaFlow muffler helps support increased horsepower and torque by optimizing exhaust flow. Its straight-through perforated stainless steel core ensures minimal backpressure, allowing your engine to breathe more freely. The result is a more responsive throttle, improved acceleration, and a signature exhaust tone that turns heads.

Key Features

This performance muffler features a free-flowing, straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill. The design not only enhances exhaust sound but also helps reduce drone and unwanted noise, providing a refined yet aggressive tone. The universal 5-inch inlet and outlet diameter give you flexibility during installation, accommodating various exhaust configurations.

• Constructed from high-quality stainless steel for corrosion resistance and long-lasting durability
• Reversible design allows installation in either orientation for versatile fitment
• Optimized for improved exhaust flow, supporting increased horsepower and torque
• Signature MagnaFlow exhaust sound with a deep, aggressive tone
• Universal 5/5-inch inlet/outlet diameter for broad compatibility
• Perfect for street performance, daily driving, and enthusiast builds
• Engineered to reduce drone and unwanted noise while enhancing sound quality

Construction & Design

The MagnaFlow 12776 muffler is built with a durable stainless steel shell and a perforated core that promotes efficient exhaust flow. Its straight-through design minimizes backpressure, which is critical for maximizing engine performance. The stainless steel mesh and acoustic fiber fill work together to absorb sound waves, providing a balanced exhaust note that is loud enough to be noticed but refined enough for daily driving. The reversible layout offers installation flexibility, making it suitable for various vehicle setups and exhaust configurations.

Installation & Fitment

The MagnaFlow 12776 muffler is a bolt-on replacement that requires no cutting or welding for most applications. Its universal 5-inch inlet and outlet diameter provide broad compatibility, and the reversible design offers installation flexibility. Basic hand tools are typically sufficient for installation, and no special tuning is required. Always verify fitment with your specific vehicle and exhaust system before installation.

• Simple bolt-on installation with common hand tools
• No cutting, drilling, or tuning required in most cases
• Reversible design for versatile orientation

What's Included

• MagnaFlow 7x7x14-inch Round Straight-Through Performance Muffler
• All necessary clamps and hardware for installation
• Installation instructions

Ideal For

• Street performance enthusiasts seeking a deep, aggressive exhaust tone
• Daily drivers looking for a durable, high-quality muffler upgrade
• Vehicle owners aiming to support increased engine performance
• Anyone wanting a versatile, universal muffler with flexible installation options