Gibson Exhaust Systems

Fits 2004–2010 Infiniti QX56 with 5.6L engine

Part #: 12213

Overview

The Gibson 04-10 Infiniti QX56 Base 5.6L 3-inch Cat-Back Single Exhaust is designed to enhance your vehicle’s performance and sound profile. Crafted for owners seeking improved acceleration, towing capacity, and hill-climbing ability, this exhaust system combines durability with a sleek, professional appearance. Its bolt-on design ensures a hassle-free installation without welding, making it accessible for both DIY enthusiasts and professional installers. The aluminized construction offers excellent corrosion resistance, ensuring long-lasting performance even in challenging conditions. This system is ideal for drivers who want a noticeable increase in low-end torque and horsepower, along with a quieter cabin experience compared to other performance exhausts.

Key Features

This exhaust system is engineered to deliver a combination of performance, durability, and ease of installation. Key features include:

• 3-inch diameter pipe for optimal exhaust flow and power gains
• Single side exit behind the rear tire for a clean, aggressive look
• Aluminized steel construction for corrosion resistance and longevity
• Designed to improve acceleration and towing capacity
• Maximizes low-end torque and horsepower at 1800–3000 RPM
• Hassle-free bolt-on installation with no welding required
• Quieter in-cab noise levels compared to other performance exhausts

Construction & Design

Constructed from aluminized steel, this exhaust system combines strength and corrosion resistance to withstand harsh driving conditions. The 3-inch piping is precisely mandrel-bent to ensure smooth exhaust flow, reducing backpressure and enhancing engine response. The design features a single side exit behind the rear tire, providing a sleek, performance-oriented aesthetic that complements the vehicle’s rugged look.

Performance & Response

This exhaust system is optimized to support improved acceleration and towing power, making it ideal for heavy-duty use and off-road adventures. Dyno testing indicates significant gains in low-end torque and horsepower, particularly within the 1800 to 3000 RPM range. The system’s design helps your Infiniti QX56 respond more quickly to throttle inputs, delivering a more engaging driving experience while maintaining a quieter cabin environment.

Installation & Fitment

The Gibson Cat-Back Single Exhaust is designed for straightforward installation, requiring no welding or specialized tools. It bolts directly onto the factory exhaust mounting points, making it suitable for DIY installation or professional service. Proper fitment is ensured for 2004–2010 Infiniti QX56 models equipped with a 5.6L engine.

What’s Included

The package includes all necessary components for a complete installation, including the aluminized steel piping, exhaust tips, and mounting hardware.