Gibson Performance Headers

2007–2011 Jeep Wrangler JK 3.8L V6

Part #: GP403S-C

Overview

The Gibson 1.5" Ceramic Coated Performance Header is a direct replacement exhaust header designed specifically for Jeep Wrangler JK models from 2007 to 2011 equipped with the 3.8L V6 engine. Compatible with Rubicon, Sahara, Sport, Unlimited, and X trims, this header enhances your Wrangler’s engine breathing efficiency to deliver improved horsepower and torque, especially in the low to mid-range RPMs. Engineered for both street and off-road use, it optimizes exhaust flow while maintaining compatibility with the factory crossover pipe, ensuring a seamless upgrade without the need for welding or custom modifications.

Built to withstand the rigors of daily driving and rugged terrain, this header also helps reduce engine operating temperatures and improves throttle response, making it an excellent performance upgrade for Jeep enthusiasts seeking reliable power gains and durability.

Key Features

Designed to provide lasting performance improvements and ease of installation, the Gibson Performance Header includes these key features:

• Ceramic coated finish for superior heat resistance and corrosion protection
• Heavy duty 3/8 inch thick laser cut port flanges to prevent warping and exhaust leaks
• Mandrel bent 16 gauge 409L stainless steel tubing for optimized and unrestricted exhaust flow
• High-temperature ceramic coating rated up to 1300°F to maintain durability under extreme conditions
• OEM style connections for a direct bolt-on fit with no welding required
• Includes premium exhaust gaskets and all necessary mounting hardware for complete installation
• Dyno-tuned to increase usable horsepower and torque at highway speeds
• Compatible with both lowered and lifted Jeep Wrangler JK models
• Backed by a lifetime limited warranty for peace of mind
• 50-state street legal, meeting EPA and CARB emissions standards

Construction & Design

The Gibson Performance Header is constructed from heavy duty 409L stainless steel tubing, chosen for its excellent strength and corrosion resistance. The 16 gauge tubing is mandrel bent to ensure smooth, unrestricted exhaust flow, maximizing engine efficiency and power delivery. The thick 3/8 inch laser cut port flanges provide a precise, leak-free seal against the cylinder head, eliminating common issues such as warping or exhaust leaks that can degrade performance over time.

The ceramic coating not only enhances the header’s durability but also reflects heat away from critical engine components, reducing under-hood temperatures. Rated to withstand temperatures up to 1300 degrees Fahrenheit, this coating ensures long-lasting protection even in demanding off-road or high-performance driving conditions.

Performance & Sound

This header improves the engine’s ability to breathe by optimizing exhaust flow, resulting in increased horsepower and torque primarily at low and mid-range RPMs. This makes it ideal for highway cruising and off-road torque demands. The improved exhaust flow also contributes to a cooler running engine, which can enhance reliability and throttle response. Additionally, the ceramic coating helps dampen heat-related noise, providing a refined exhaust tone without excessive drone.

Installation & Fitment

The Gibson Performance Header is a direct bolt-on replacement for the factory exhaust manifolds on Jeep Wrangler JK models from 2007 through 2011, including Rubicon, Sahara, Sport, Unlimited, and X trims. It utilizes OEM style connections and retains compatibility with the stock crossover pipe, eliminating the need for welding or custom modifications. Installation is straightforward and can typically be completed with basic hand tools, making it accessible for both professional installers and experienced DIY enthusiasts.

What's Included

• Gibson Ceramic Coated Performance Header
• Premium exhaust gaskets
• All necessary mounting hardware
• Installation instructions

Ideal For

This performance header is perfect for Jeep Wrangler JK owners who want a reliable and durable upgrade that enhances power delivery and engine efficiency without sacrificing street legality or requiring complex installation. Whether you drive a lowered street rig or a lifted off-road machine, this header delivers improved throttle response, cooler engine temperatures, and a robust design built to withstand daily driving and rugged terrain.

Emissions Note

The Gibson Performance Header is 50-state street legal and meets EPA and CARB emissions requirements. It will not affect your factory warranty, making it a compliant and responsible choice for performance upgrades on your Jeep Wrangler JK.