• Gibson 3.5in/2.25in Dual Extreme Cat-Back Exhaust | GMC Sierra 1500 Denali (14-18) (65665)
  • Gibson 3.5in/2.25in Dual Extreme Cat-Back Exhaust | GMC Sierra 1500 Denali (14-18) (65665)
  • Gibson 3.5in/2.25in Dual Extreme Cat-Back Exhaust | GMC Sierra 1500 Denali (14-18) (65665)
  • Gibson 3.5in/2.25in Dual Extreme Cat-Back Exhaust | GMC Sierra 1500 Denali (14-18) (65665)
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Gibson 3.5in/2.25in Dual Extreme Cat-Back Exhaust | GMC Sierra 1500 Denali (14-18) (65665)

Gibson 3.5in/2.25in Dual Extreme Cat-Back Exhaust | GMC Sierra 1500 Denali (14-18) (65665)

65665

Out of stock

$697.95 USD
$1,577.85 USD $697.95 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Extreme Exhaust is a high-performance exhaust system designed to enhance the power and sound of your truck. Constructed from polished stainless steel, this bolt-on system features dual pipes that exit behind the rear tires at an aggressive angle, delivering a bold and aggressive exhaust tone. Engineered for street performance, it provides dyno-tuned gains of approximately 15-20 horsepower, along with improved exhaust flow and a more commanding sound. The system's design emphasizes durability and a striking appearance, with polished stainless tips that complement the vehicle's aesthetic. Easy to install without welding, this exhaust upgrade is ideal for enthusiasts seeking both performance and style.

This exhaust system is specifically designed for 2014-2018 GMC Sierra 1500 models equipped with a 6.2L engine. It fits models with a 3.5-inch and 2.25-inch pipe diameter, serving as a direct bolt-on replacement for the factory system. Suitable for street and performance use, it enhances both sound and power without requiring modifications. The kit includes all necessary components for installation, ensuring a straightforward upgrade process. Whether for daily driving or spirited street use, this Gibson cat-back exhaust offers a significant performance boost and an aggressive sound profile, making it an excellent choice for Sierra owners looking to elevate their truck's capabilities.

Overview

Gibson Exhaust System

Fits 2014–2018 GMC Sierra 1500 Denali 6.2L

Part #: 65665

Overview

The Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Extreme Exhaust is designed for truck enthusiasts seeking to enhance both the performance and appearance of their vehicle. Crafted from durable stainless steel, this dual exhaust system offers a bold, aggressive look and a commanding exhaust tone that complements the powerful nature of the Sierra Denali. It is ideal for drivers who want to elevate their truck’s street presence while enjoying measurable performance improvements. The system is engineered to provide a deep, resonant sound that emphasizes the vehicle’s muscle, all while supporting optimal exhaust flow for better response and efficiency. This exhaust system is perfect for those looking to add a custom, high-performance touch to their Sierra, whether for daily driving or weekend adventures. Its bolt-on design ensures a straightforward installation process, making it accessible for DIY enthusiasts and professional installers alike. With a focus on durability and style, this system helps your truck stand out with a polished stainless tip and an aggressive rear angle that enhances the vehicle’s stance.

Key Features

This Gibson Cat-Back Exhaust combines quality materials and thoughtful design to deliver a reliable upgrade. Key features include:
  • Constructed from high-grade stainless steel for corrosion resistance and longevity
  • Aggressive dual outlet design behind the rear tires for a bold appearance
  • Powerful exhaust tone that enhances the vehicle’s presence
  • Engineered for optimal exhaust flow to support performance gains
  • Easy bolt-on installation with no welding required
  • Polished stainless steel tips for a refined finish
  • Designed specifically for 2014–2018 GMC Sierra 1500 Denali 6.2L models

Construction & Design

This exhaust system features a robust stainless steel construction, ensuring durability and resistance to rust and corrosion. The design angles aggressively behind the rear tires, providing a commanding visual profile and a distinctive sound profile that complements the truck’s muscular stance. The polished stainless tips add a refined touch, balancing performance with style.

Driving Feel & Feedback

The Gibson dual exhaust enhances the vehicle’s sound character, delivering a deep, aggressive tone that emphasizes the truck’s power. The improved exhaust flow can contribute to a slight increase in throttle response and a more engaging driving experience, making every drive more exhilarating.

Installation & Fitment

Designed for a straightforward bolt-on installation, this system requires no welding or cutting. It fits directly onto the factory exhaust mounting points, allowing for a hassle-free upgrade that can be completed in a few hours with basic tools.

What’s Included

The package includes all necessary components for a complete installation, including the dual exhaust pipes, polished stainless steel tips, and hardware needed for secure mounting.

Ideal For

This exhaust system is perfect for GMC Sierra 1500 owners who want to boost their truck’s sound, style, and performance with a durable, high-quality upgrade that’s easy to install and visually striking.
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