• Gibson 3in Single Exhaust | GMC Sierra 1500 SL (10-13) (615621)
  • Gibson 3in Single Exhaust | GMC Sierra 1500 SL (10-13) (615621)
  • Gibson 3in Single Exhaust | GMC Sierra 1500 SL (10-13) (615621)
  • Gibson 3in Single Exhaust | GMC Sierra 1500 SL (10-13) (615621)
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Gibson 3in Single Exhaust | GMC Sierra 1500 SL (10-13) (615621)

Gibson 3in Single Exhaust | GMC Sierra 1500 SL (10-13) (615621)

615621

Out of stock

$590.69 USD
$1,335.37 USD $590.69 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Gibson 10-13 GMC Sierra 1500 SL 5.3L 3-inch Cat-Back Single Exhaust is a high-performance exhaust system designed to enhance vehicle power and efficiency. Constructed from durable stainless steel, this exhaust system features a single side exit behind the rear tire, providing a sleek and professional appearance. It is engineered to improve acceleration, hill climbing, towing capacity, and passing power, making it an ideal upgrade for enthusiasts seeking increased low-end torque and horsepower. Dyno testing confirms gains of 10-15 horsepower and 15-20 lb-ft of torque, with quieter operation inside the cab compared to other performance exhausts. The system offers hassle-free, bolt-on installation that requires no welding, ensuring a clean and professional look.

This exhaust system is specifically designed for 2010-2013 GMC Sierra 1500 models with the 5.3L engine. It is a direct bolt-on replacement that fits the stock configuration without modifications. Suitable for street and towing applications, it enhances overall vehicle performance while maintaining a quieter exhaust note inside the cabin. The kit includes all necessary components for installation, providing a straightforward upgrade for daily drivers and performance enthusiasts alike. Compatible with the stock exhaust mounting points, this system offers a reliable and effective solution to boost your Sierra’s power output and sound.

Overview

Gibson Exhaust Systems

Fits 2010–2013 GMC Sierra 1500 with 5.3L Engine

Part #: 615621

Overview

The Gibson 10-13 GMC Sierra 1500 SL 5.3L 3-inch Cat-Back Single Exhaust is engineered to enhance your truck’s performance and sound profile. Designed specifically for GMC Sierra models from 2010 to 2013 equipped with the 5.3L engine, this exhaust system offers a straightforward bolt-on installation that requires no welding, making it accessible for both DIY enthusiasts and professional installers. Crafted from durable stainless steel, it ensures long-lasting corrosion resistance and maintains its polished appearance over time. This system is ideal for drivers seeking improved acceleration, increased towing capacity, and a more aggressive exhaust note without sacrificing comfort or daily usability. Whether you're looking to boost your vehicle’s response during hill climbs, towing, or passing maneuvers, this exhaust system helps support maximum low-end torque and horsepower. It exits behind the rear tire, providing a sleek, performance-oriented look while maintaining a quieter interior environment compared to other high-performance exhausts. The design emphasizes a balance between enhanced power delivery and reduced noise levels, ensuring a refined driving experience.

Key Features

This Gibson exhaust system features a high-quality stainless steel construction that resists rust and corrosion, ensuring durability and longevity. Its mandrel-bent tubing optimizes exhaust flow, reducing backpressure and supporting improved engine efficiency. The system’s design enhances low-end torque and horsepower, with dyno testing indicating gains of approximately 10-15 horsepower and 15-20 lb-ft of torque. The exhaust exits behind the rear tire, contributing to a clean, aggressive aesthetic. Hassle-free installation with a bolt-on design means no welding or specialized tools are required, allowing for a professional-looking upgrade in minimal time. The system also helps achieve a deeper, more refined exhaust tone that complements your vehicle’s performance characteristics.

Construction & Design

Built from high-grade stainless steel, this exhaust system is engineered for durability and corrosion resistance. The mandrel-bent tubing ensures smooth exhaust flow, reducing turbulence and backpressure for improved engine response.

Driving Feel & Feedback

This exhaust enhances your vehicle’s response and low-end torque, making hill climbing, towing, and passing maneuvers more effortless. The quieter interior noise level provides a comfortable driving environment while delivering an aggressive exhaust note outside the vehicle.

Installation & Fitment

Designed for a direct bolt-on installation, this system requires no welding or cutting. It fits 2010–2013 GMC Sierra 1500 models with the 5.3L engine, providing a seamless upgrade with professional results.

What’s Included

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