Roush Exhaust

Fits 2005–2009 Ford Mustang GT and GT500

Part #: 403936

Overview

The Roush 2005-2009 Ford Mustang GT/GT500 Enhanced Sound Dual Cat-Back Exhaust Kit is designed to elevate your Mustang’s sound and performance. Crafted specifically for the 2005 to 2009 Mustang GT and GT500 models, this exhaust system combines aggressive tone with improved airflow, helping your vehicle deliver a more commanding presence on the road. Whether you're a performance enthusiast or a Mustang owner seeking a more spirited sound, this kit offers a perfect blend of style, durability, and functional enhancement. It’s ideal for those looking to upgrade their exhaust system for a deeper, more resonant exhaust note while supporting increased horsepower and torque.

Key Features

This dual cat-back exhaust system is engineered with precision to optimize your vehicle’s exhaust flow. Made from high-quality materials, it ensures long-lasting performance and resistance to corrosion. The CNC-bent tubing guarantees a precise fit and smooth bends for enhanced exhaust efficiency. Designed to produce a bold, aggressive sound outside the vehicle without creating excessive drone inside the cabin, it offers a refined driving experience. The kit is a straightforward bolt-on upgrade that enhances both the sound and performance of your Mustang, making it a popular choice among enthusiasts seeking a more dynamic driving character.

Construction & Design

Constructed from durable, high-grade stainless steel, this exhaust system features CNC-bent tubing for optimal flow and structural integrity. The dual outlet design not only improves exhaust scavenging but also adds a sporty aesthetic to your Mustang’s rear end. The polished finish enhances appearance and provides resistance against the elements, ensuring your upgrade maintains its look over time.

Driving Feel & Feedback

This exhaust kit helps deliver a more aggressive exhaust note, amplifying the vehicle’s natural sound profile. It supports a more responsive throttle feel and a noticeable improvement in exhaust flow, which can contribute to slight gains in horsepower and torque. The system is designed to enhance the driving experience by providing a deeper, more authoritative sound without sacrificing comfort or daily drivability.

Installation & Fitment

The Roush Enhanced Sound Dual Cat-Back Exhaust Kit is a bolt-on installation designed for direct fitment on 2005-2009 Ford Mustang GT and GT500 models. Basic mechanical skills and standard tools are recommended for installation, which can typically be completed in a few hours. Proper alignment and tightening are essential to ensure optimal performance and sound quality.

What’s Included

The package includes all necessary components for a complete installation, including the dual exhaust pipes, mufflers, and hardware required for a secure fitment.

Ideal For

Perfect for Mustang enthusiasts seeking a more aggressive exhaust tone, improved airflow, and a performance-oriented upgrade that enhances both sound and driving dynamics.