Magnaflow Exhaust Muffler

2011–2025 Universal Vehicle Fitment / Performance Exhaust

Part #: 12388

Overview

The MagnaFlow 5x24x8in. Oval Straight-Through Performance Exhaust Muffler 12388 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 deep, aggressive exhaust note and enhanced flow, this muffler is suitable for a wide range of applications where performance and sound quality are priorities. Whether you're upgrading your daily driver or building a performance-oriented setup, this muffler delivers a balanced blend of durability, sound, and efficiency.

Engineered to improve exhaust flow compared to stock components, the MagnaFlow muffler helps support increased horsepower and torque, making it an excellent choice for those looking to optimize their vehicle's performance. Its universal design and reversible inlet/outlet configuration provide flexible installation options, allowing you to customize your exhaust layout to suit your specific needs and vehicle configuration.

Key Features

The MagnaFlow 12388 features advanced construction and thoughtful design elements that contribute to its performance and longevity:

• Constructed with a free-flowing straight-through perforated stainless steel core wrapped in stainless steel mesh and acoustic fiber fill, ensuring durability and optimal sound quality.
• Oval shape measuring 5 inches by 8 inches provides a sleek, aggressive look while maximizing flow capacity.
• Reversible, universal 3/2.5-inch diameter inlet/outlet layout allows flexible installation in various vehicle configurations.
• Manufactured from high-quality stainless steel to resist corrosion and withstand harsh driving conditions.
• Engineered for a deep, signature exhaust tone that enhances driving experience without excessive drone or noise.
• Designed to improve exhaust flow, which can lead to better throttle response and support increased engine performance.
• Easy to install with compatible mounting points and hardware, suitable for DIY enthusiasts and professional installers alike.
• Backed by MagnaFlow's reputation for quality and performance, ensuring long-lasting reliability and consistent sound.

Construction & Design

The MagnaFlow 12388 muffler is built with precision and durability in mind. Its stainless steel perforated core is engineered to promote smooth, unrestricted exhaust flow, reducing backpressure and enhancing engine efficiency. The acoustic fiber fill dampens unwanted noise while allowing the signature MagnaFlow tone to shine through. The oval shape not only provides a distinctive aesthetic but also optimizes internal flow paths for maximum performance gains. The reversible inlet/outlet design offers installation versatility, making it compatible with various exhaust configurations and vehicle setups.

Installation & Fitment

The MagnaFlow 12388 muffler is a bolt-on upgrade that requires minimal modifications for installation. Its universal design and reversible inlet/outlet configuration mean it can be adapted to a wide range of vehicles and exhaust layouts. No cutting, drilling, or complex tuning is typically necessary, making it a straightforward upgrade for DIY enthusiasts and professional installers. Proper mounting hardware and instructions are included to ensure a secure and precise fit.

• Simple bolt-on installation with existing exhaust clamps and mounting points
• No cutting, drilling, or tuning required in most applications
• Compatible with various vehicle makes and models, thanks to its universal design

What's Included

• MagnaFlow 5x24x8in. Oval Straight-Through Performance Exhaust Muffler
• Necessary clamps and mounting hardware
• Installation instructions

Ideal For

• Performance enthusiasts seeking a deep, aggressive exhaust tone
• Drivers looking to improve exhaust flow and engine response
• Vehicle owners upgrading their stock exhaust system for better sound and performance
• DIYers and professional installers requiring a versatile, durable muffler