Gibson Exhaust Systems

Fits 2014–2018 GMC Sierra 1500 with 5.3L Engine

Part #: 315628

Overview

The Gibson 14-18 GMC Sierra 1500 Base 5.3L 3.5-inch Cat-Back Single Exhaust is designed to enhance your truck’s performance and sound profile. Crafted for GMC Sierra owners seeking improved acceleration, towing capacity, and hill-climbing ability, this exhaust system combines durability with a sleek, professional appearance. Its aluminized construction ensures longevity, while the bolt-on design allows for straightforward installation without welding. This system is ideal for drivers who want a noticeable increase in low-end torque and horsepower, along with a quieter interior experience compared to other performance exhausts.

Key Features

This Gibson exhaust system features a thoughtfully engineered design to optimize exhaust flow and vehicle response. Key features include:

• Aluminized steel construction for corrosion resistance and durability
• 3.5-inch diameter pipe for improved exhaust flow and performance
• Single side exit behind the rear tire for a clean, aggressive look
• Hassle-free bolt-on installation requiring no welding
• Designed to maximize low-end torque and horsepower gains
• Produces a refined, quieter sound inside the cab while delivering a robust exhaust note outside
• Dyno-tested to ensure maximum torque and horsepower at low RPMs (1800–3000 RPM)

Construction & Design

The exhaust system is constructed from aluminized steel, providing excellent resistance to rust and corrosion, ensuring long-lasting performance in demanding conditions. Its design features a single pipe configuration that exits behind the rear tire, offering a streamlined appearance and optimized exhaust flow for enhanced engine response.

Driving Feel & Feedback

This system helps improve your vehicle’s acceleration and towing capabilities by reducing exhaust backpressure. The increased low-end torque results in more responsive acceleration and better hill-climbing ability, making your driving experience more confident and enjoyable. The quieter interior enhances comfort during daily driving, while the aggressive exterior sound adds a satisfying exhaust note.

Installation & Fitment

Designed for easy bolt-on installation, this exhaust system requires no welding or specialized tools. It fits GMC Sierra 1500 models equipped with a 5.3L engine from 2014 to 2018, providing a direct replacement that maintains factory mounting points and clearances.

What’s Included

The package includes all necessary components for a complete installation, including the aluminized exhaust pipes, clamps, and hardware needed to secure the system to your vehicle.

Ideal For

Perfect for GMC Sierra owners looking to boost their truck’s performance and sound profile without extensive modifications. Suitable for those seeking a durable, professional-looking exhaust upgrade that enhances low-end power and driving enjoyment.