Magnaflow MagnaFlow Sport Series Stainless Cat-Back Exhaust

2004–2006 Audi S4 4.2L V8

Part #: 16586

Overview

The MagnaFlow Sport Series Stainless Cat-Back Exhaust for the Audi S4 is engineered to enhance your vehicle's performance and sound profile. Designed specifically for the 2004 to 2006 models equipped with the 4.2L V8 engine, this exhaust system offers a perfect blend of durability, style, and improved exhaust flow. Whether you're a daily driver seeking a deeper tone or an enthusiast looking to maximize your vehicle's potential, this system delivers reliable, dyno-proven results.

Constructed from high-quality stainless steel, the MagnaFlow Sport Series exhaust provides a long-lasting solution that resists corrosion and maintains its polished appearance over time. Its direct bolt-on design ensures a straightforward installation process, making it accessible for both professional mechanics and DIY enthusiasts. With this exhaust, you'll get a more aggressive sound that enhances your driving experience without being overly intrusive, making it suitable for everyday use and spirited driving alike.

Key Features

The MagnaFlow Sport Series Stainless Cat-Back Exhaust is built with performance and durability in mind. Here are some of its standout features:

• Constructed entirely from 100% stainless steel, ensuring corrosion resistance and longevity.
• Fully polished mufflers and exhaust tips provide a sleek, high-end appearance that complements the Audi S4's sporty aesthetic.
• Mandrel-bent tubing promotes smooth exhaust flow, reducing backpressure and supporting increased horsepower and torque.
• Designed with a dual split rear exit configuration, offering a balanced and aggressive look from the rear of the vehicle.
• Provides a deep, smooth tone that enhances the natural sound of the V8 engine, giving your S4 a more commanding presence.
• Dyno-proven to improve exhaust flow and support performance upgrades, making it ideal for enthusiasts seeking better response and sound.
• Engineered for a direct bolt-on installation, with no cutting or welding required.
• Backed by MagnaFlow's reputation for quality and performance in the aftermarket exhaust industry.

Construction & Design

This MagnaFlow exhaust system features a meticulously engineered design that emphasizes durability and performance. The entire system is crafted from high-grade stainless steel, ensuring resistance to rust and corrosion even in harsh driving conditions. The mandrel-bent tubing maintains consistent diameter throughout the bends, minimizing turbulence and maximizing exhaust flow efficiency. The fully polished mufflers and tips not only look great but also help reflect heat away from critical components, aiding in heat management.

The dual split rear exit configuration provides a balanced aesthetic and optimized exhaust dispersal, contributing to the deep tone and improved sound quality. The system's one-piece construction and precise fitment ensure a seamless installation experience, aligning perfectly with the factory mounting points and OEM inlets.

Installation & Fitment

The MagnaFlow Sport Series Stainless Cat-Back Exhaust is a bolt-on system that requires no cutting, drilling, or welding. Its direct-fit design ensures a straightforward installation process, often completed within a few hours with basic hand tools. The system mounts directly to the factory exhaust mounting points, making it an ideal upgrade for enthusiasts looking to improve their vehicle's sound and performance without extensive modifications.

• Easy, bolt-on installation with no cutting or welding required
• Designed specifically for 2004–2006 Audi S4 models with 4.2L V8 engines
• Includes all necessary clamps and hardware for a complete installation

What's Included

• Complete stainless steel cat-back exhaust system with dual split rear exit tips
• Polished mufflers and exhaust tips
• All necessary clamps and hardware for installation
• Detailed installation instructions

Ideal For

• Performance enthusiasts seeking a deep, aggressive exhaust tone
• Owners looking to improve exhaust flow and support power upgrades
• Drivers wanting a durable, corrosion-resistant exhaust system
• Anyone wanting a straightforward, bolt-on upgrade for their Audi S4