Gibson Dual Extreme Cat-Back Performance Exhaust

2014–2024 Ram 2500 / Ram 3500 6.4L 392 HEMI

Part #: 66567

Overview

The Gibson Dual Extreme Cat-Back Performance Exhaust system is expertly engineered for 2014 through 2024 Ram 2500 and Ram 3500 trucks equipped with the 6.4L 392 HEMI engine. This stainless steel cat-back system replaces the factory exhaust from the catalytic converter back, delivering enhanced exhaust flow, increased horsepower, and a bold, aggressive exhaust tone. Designed for truck enthusiasts who want to upgrade both performance and style, the Dual Extreme exhaust offers a commanding sound without sacrificing daily drivability or requiring complex installation.

With its distinctive dual exhaust layout exiting behind the rear tires at a sharp angle, this system not only improves engine efficiency but also adds a striking visual upgrade to your truck’s rear profile. Backed by Gibson’s reputation for durability and quality craftsmanship, this exhaust system is built to last and comes with a lifetime limited warranty for peace of mind.

Key Features

Engineered to maximize both performance and aesthetics, the Gibson Dual Extreme Exhaust system includes:

• Cat-back dual exhaust design with bolt-on installation—no welding or cutting required
• Premium stainless steel baffled and chambered Superflow™ CFT muffler for a deep, aggressive sound
• Polished stainless steel slash-cut clamp-on tips for a bold, street-ready appearance
• Mandrel-bent stainless steel tubing to ensure optimal exhaust flow and long-lasting durability
• Minimal interior drone for comfortable daily driving and spirited performance
• Includes all necessary hardware and factory-style hangers for a precise, hassle-free fit
• Dyno-tested to deliver average horsepower gains of 15 to 20 HP
• Lifetime limited warranty for long-term reliability and customer confidence

Construction & Design

Constructed from high-grade stainless steel, the Gibson Dual Extreme Exhaust system is designed to resist corrosion and withstand the rigors of daily driving and harsh road conditions. The mandrel-bent tubing maintains a smooth, unrestricted exhaust flow, which helps improve engine efficiency and power output. The muffler’s baffled and chambered design expertly balances an aggressive exhaust note with reduced cabin drone, making it suitable for both performance enthusiasts and everyday drivers.

The polished stainless steel slash-cut tips not only enhance the truck’s rear styling but are also built to maintain their finish and resist corrosion over time. Every component is precision-engineered for a factory-style fit, ensuring proper alignment and secure mounting using the original hangers.

Performance & Sound

This exhaust system is tuned to produce a powerful and aggressive tone that commands attention without overwhelming the cabin. The dual exhaust layout improves scavenging and exhaust flow, resulting in noticeable horsepower gains typically ranging from 15 to 20 horsepower. Whether towing heavy loads, hauling gear, or cruising on the highway, the Gibson Dual Extreme Exhaust enhances throttle response and overall engine performance for a more engaging driving experience.

Installation & Fitment

The Gibson Stainless Steel Cat-Back Dual Extreme Exhaust is designed for a straightforward bolt-on installation with no welding, cutting, or modifications required. It utilizes factory-style hangers and includes all necessary hardware to ensure a quick and secure fit. This system is specifically engineered to fit the following Ram models and trims equipped with the 6.4L 392 HEMI engine:

• Ram 2500: Big Horn, Laramie, Laramie Limited (2014–2015), Laramie Longhorn (2014–2022), Limited (2016–2024), Limited Longhorn (2021–2024), Lone Star (2014–2015, 2019–2024), Outdoorsman (2014–2016), Power Wagon, Rebel (2023–2024), SLT (2014–2018), Tradesman
• Ram 3500: Big Horn, Laramie (2014–2020, 2022–2024), Laramie Longhorn (2014–2020), Limited (2016–2024), Limited Longhorn (2022–2024), Lone Star (2014–2015, 2017, 2019–2022), SLT (2014–2019), Tradesman

What's Included

• Stainless steel dual exhaust cat-back system
• Baffled and chambered Superflow™ CFT muffler
• Polished stainless steel slash-cut clamp-on tips
• All mounting hardware and factory-style hangers
• Detailed installation instructions

Ideal For

This exhaust system is ideal for Ram 2500 and 3500 owners who want to elevate their truck’s performance and sound without compromising daily comfort. Whether you are a performance enthusiast seeking a more aggressive exhaust tone, a professional requiring dependable towing power, or simply looking to upgrade your factory exhaust for improved horsepower and striking style, the Gibson Dual Extreme Exhaust delivers a balanced and reliable solution.

Gibson Performance Exhaust manufactures street-legal performance exhaust systems for trucks, SUVs, UTVs/side-by-sides, and muscle car applications. Known for an aggressive sound and bolt-on fitment, Gibson systems are engineered to improve exhaust flow while maintaining durability for daily driving, towing, and weekend fun.