Magnaflow Exhaust Muffler

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

Part #: 12138

Overview

The MagnaFlow 5x14x8 inch Oval Straight-Through Performance Exhaust Muffler 12138 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, signature exhaust note and enhanced flow, this muffler is suitable for a wide range of applications where a high-performance, durable muffler is desired. Whether you're upgrading your daily driver or building a custom exhaust setup, this muffler offers a versatile solution that balances sound, flow, and reliability.

Engineered with a focus on performance and sound quality, the MagnaFlow 12138 muffler helps support increased horsepower and torque by reducing exhaust backpressure. Its free-flowing straight-through perforated stainless steel core ensures optimal exhaust flow, contributing to improved engine efficiency and a more spirited driving experience. The muffler's design not only enhances sound but also maintains durability and resistance to corrosion, making it a reliable choice for both street and spirited driving.

Key Features

Designed to deliver a signature exhaust tone and improved flow, the MagnaFlow 12138 features several key technological and construction elements:

• Constructed with a perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill, providing a balanced combination of sound absorption and resonance tuning.
• Reversible, universal inlet and outlet configuration with 2.25-inch diameter allows flexible installation options in various vehicle setups.
• Oval shape measuring 5 inches by 14 inches with an 8-inch length, optimized for fitment and performance enhancement.
• High-quality stainless steel construction ensures long-lasting durability and resistance to rust and corrosion.
• Straight-through design promotes maximum exhaust flow, reducing backpressure and supporting increased engine performance.
• Signature MagnaFlow exhaust sound that is deep, aggressive, and refined, perfect for enthusiasts seeking an enhanced auditory experience.
• Dyno-tested to verify performance improvements, ensuring reliable gains in horsepower and torque.

Construction & Design

The MagnaFlow 12138 muffler is built with premium stainless steel materials, ensuring longevity and resistance to harsh environmental conditions. Its oval shape and straight-through perforated core are engineered for optimal airflow, reducing restrictions and enhancing overall exhaust efficiency. The inclusion of acoustic fiber fill helps fine-tune the sound, delivering a deep, resonant exhaust note without excessive drone. The reversible inlet/outlet design provides installation flexibility, accommodating various vehicle configurations and custom exhaust layouts.

Installation & Fitment

The MagnaFlow 12138 muffler features a universal 2.25-inch inlet and outlet, making it compatible with a wide range of vehicles and custom exhaust setups. Its straightforward, bolt-on design allows for easy installation with basic tools. The reversible configuration offers additional flexibility, enabling you to orient the muffler in the most suitable direction for your application. No cutting, drilling, or complex modifications are typically required, but professional installation is recommended to ensure optimal fitment and performance.

• Reversible, universal 2.25-inch inlet/outlet design for flexible installation
• Easy bolt-on installation with standard exhaust clamps and hardware
• No cutting or welding required in most applications

What's Included

• MagnaFlow 5x14x8 inch Oval Performance Exhaust Muffler
• All necessary clamps and mounting hardware
• Installation instructions

Ideal For

• Performance enthusiasts seeking a deep, aggressive exhaust sound
• Drivers looking to improve exhaust flow and support increased engine performance
• Custom exhaust builders requiring a versatile, durable muffler
• Anyone wanting a reliable, long-lasting upgrade to their vehicle's exhaust system