Kooks Headers Cat-Back Exhaust System

Jeep Grand Cherokee 12-21 6.4L/6.2L

Part #: 34104200

Overview

The Kooks 3" Stainless Steel Cat-Back Exhaust System is a premium upgrade designed specifically for Jeep Grand Cherokee SRT8 and Trackhawk models from 2011 through 2021. Crafted to enhance both performance and sound, this cat-back system improves exhaust flow while delivering a deeper, more aggressive exhaust tone. It is engineered for enthusiasts who want to unlock the full potential of their 6.4L naturally aspirated SRT or 6.2L supercharged Trackhawk engines without compromising daily drivability or factory aesthetics.

This system integrates seamlessly with either Kooks headers and connection pipes or the factory OEM exhaust, offering flexibility and ease of installation. Its polished stainless steel mufflers and split rear exit design provide a distinctive, aggressive look that complements the bold styling of these high-performance SUVs.

Key Features

Combining advanced engineering and high-quality materials, the Kooks cat-back exhaust system delivers superior performance and a refined exhaust note. Key features include:

• 3-inch mandrel-bent stainless steel piping for optimal exhaust flow and durability
• Constructed from premium 304 grade stainless steel for corrosion resistance and long-lasting performance
• Split rear exit design enhances exhaust tone and visual appeal
• Two polished oval stainless steel mufflers engineered for a balanced, aggressive sound
• Includes Kooks X-pipe to improve exhaust scavenging and power gains
• Designed to reuse factory exhaust tips for a clean, OEM-compatible appearance
• Compatible with Kooks headers and connection pipes or factory OEM exhaust components
• Precision fitment for Jeep Grand Cherokee SRT8 and Trackhawk models from 2011 to 2021

Construction & Design

Kooks utilizes premium 304 grade stainless steel throughout the entire cat-back system, ensuring exceptional resistance to rust and corrosion under all driving conditions. The mandrel-bent tubing maintains a consistent 3-inch diameter through all bends, minimizing flow restrictions and maximizing exhaust velocity for improved engine efficiency.

The system’s split rear exit layout is engineered to optimize exhaust gas evacuation while providing a distinctive, aggressive appearance that complements the muscular styling of the Grand Cherokee SRT and Trackhawk. The two polished oval mufflers not only enhance sound quality but also maintain a refined tone suitable for both spirited driving and everyday use.

Designed to retain the factory exhaust tips, this system preserves the vehicle’s original styling cues while delivering a significant performance upgrade.

Performance & Sound

This cat-back exhaust system is engineered to improve exhaust flow, reducing backpressure and enabling potential gains in horsepower and torque. The inclusion of the Kooks X-pipe enhances exhaust scavenging, further optimizing engine efficiency and power delivery.

Drivers will experience a deeper, more aggressive exhaust note that elevates the driving experience without excessive drone or harshness, making it ideal for both street and spirited driving conditions.

Installation & Fitment

The Kooks cat-back exhaust system is designed for direct bolt-on installation on 2011–2021 Jeep Grand Cherokee SRT8 and Trackhawk models. It reuses the factory exhaust tips, simplifying the installation process and preserving the vehicle’s factory appearance. No cutting or welding is required, making installation accessible for professional installers and experienced enthusiasts alike.

What's Included

• 3-inch mandrel-bent stainless steel cat-back exhaust piping
• Kooks X-pipe for enhanced exhaust flow
• Two polished oval stainless steel mufflers
• All necessary hardware and clamps for installation
• Instructions for proper fitment and assembly

Ideal For

This exhaust system is perfect for Jeep Grand Cherokee SRT8 and Trackhawk owners seeking to unlock additional performance and achieve a more aggressive exhaust sound without compromising daily drivability or factory aesthetics. It suits enthusiasts looking for a durable, high-quality upgrade that enhances both street and spirited driving experiences while maintaining a clean, factory-compatible look.

Kooks Headers & Exhaust is a heritage performance exhaust manufacturer best known for high-quality stainless steel headers and complete exhaust systems. Built for serious street and track builds, Kooks products focus on fitment, durability, and the kind of airflow improvements enthusiasts chase when stepping up power.