Kooks Headers Longtube Headers & H.O. Green Catted Mid Pipe Kit

2015–2023 Dodge Challenger / Charger SRT Hellcat 6.2L HEMI

Part #: 3103H641

Overview

The Kooks 2" x 3" Longtube Headers combined with 3" High Output Green Catted Mid Pipe Kit is a premium exhaust upgrade designed specifically for the 2015–2023 Dodge Challenger and Charger SRT Hellcat equipped with the 6.2L HEMI engine. This system is engineered to enhance exhaust flow, increase horsepower and torque, and deliver a more aggressive exhaust tone while maintaining emissions compliance through the integrated high-output catalytic converters.

Crafted by Kooks Headers, a trusted name in performance exhaust systems for over five decades, this kit is ideal for muscle car enthusiasts seeking a reliable, high-quality solution for street, track, and performance applications. It offers a direct-fit upgrade that replaces restrictive factory manifolds and mid pipes, unlocking the full potential of the Hellcat’s supercharged V8.

Key Features

Designed to maximize power gains and durability, the Kooks Longtube Headers and Green Catted Mid Pipe Kit include:

• Premium T304 aircraft-grade stainless steel construction for exceptional strength and corrosion resistance
• 2" primary tube diameter expanding to 3" collector outlets for optimized exhaust scavenging and reduced backpressure
• 3" diameter high-output green catted mid pipes that balance emissions control with performance enhancement
• Handcrafted in the USA with meticulous attention to fitment and finish
• Direct bolt-on design for 2015–2023 Dodge Challenger and Charger SRT Hellcat 6.2L HEMI engines
• Does not connect to OEM exhaust; designed to mate with aftermarket 3" exhaust systems
• Dyno and race tested to ensure reliable power gains and durability under demanding conditions
• Backed by a limited lifetime warranty to the original purchaser

Construction & Design

Kooks Headers are expertly fabricated from T304 stainless steel, an aircraft-quality material known for its outstanding heat resistance and longevity. The longtube header design improves exhaust gas flow by minimizing turbulence and backpressure, which enhances engine efficiency and power output. Each header and mid pipe is handcrafted in the USA, ensuring precise fitment and superior craftsmanship.

The integrated green catted mid pipes feature high-output catalytic converters that provide a balance between emissions compliance and performance gains. This thoughtful design allows enthusiasts to upgrade their exhaust system without sacrificing environmental considerations where applicable.

Performance & Sound

This header and mid pipe kit unlocks the full potential of the Hellcat’s supercharged 6.2L HEMI by improving exhaust scavenging and flow dynamics. The result is a noticeable increase in horsepower and torque across the entire RPM range. Additionally, the stainless steel construction and longtube design contribute to a deeper, more aggressive exhaust note that enhances the driving experience without excessive drone or harshness.

Installation & Fitment

The Kooks Longtube Headers and Green Catted Mid Pipe Kit are designed for direct bolt-on installation on 2015–2023 Dodge Challenger and Charger SRT Hellcat models equipped with the 6.2L HEMI engine. Because these headers do not connect to the OEM exhaust, they require an aftermarket exhaust system with 3" outlets for proper integration. Professional installation is recommended to ensure correct fitment, alignment, and optimal performance, especially when paired with custom or modified exhaust setups.

What's Included

• 2" x 3" Stainless Steel Longtube Headers
• 3" x 3" Outlet High Output Green Catted Stainless Steel Mid Pipes
• All necessary hardware for header installation
• Installation instructions

Ideal For

This kit is perfect for muscle car enthusiasts and performance builders who own a 2015–2023 Dodge Challenger or Charger SRT Hellcat with the 6.2L HEMI engine. It suits those looking to increase engine output, improve exhaust sound quality, and upgrade their exhaust system with a high-quality, American-made product designed for both street and track use.