07-10 Ford Mustang Shelby GT500 5.4L Kooks 11323500 3" x 2-1/2" (OEM) SS Catted H-Pipe

07-10 Ford Mustang Shelby GT500 5.4L Kooks 11323500 3" x 2-1/2" (OEM) SS Catted H-Pipe

The Kooks 11323500 3" x 2-1/2" Stainless Steel Catted H-Pipe is an upgraded performance solution designed specifically for the 2007-2010 Ford Mustang Shelby GT500 with a 5.4L engine. Building on Kooks’ legacy of quality and performance, this new H-pipe comes with Kooks GREEN Cats, the next generation of catalytic converters engineered to handle up to 750 RWHP while maintaining excellent emissions compliance. The previous standard cats have been replaced by these more durable, EPA-verified GREEN Cats, ensuring superior performance, reliability, and long-term efficiency.

Crafted from 304 stainless steel, this high-flow H-pipe optimizes exhaust flow for improved horsepower and torque. With a 3" diameter inlet and 2-1/2" OEM outlet, it offers a perfect fit with the stock exhaust system, making it ideal for enthusiasts looking to enhance the sound and power of their GT500 without sacrificing quality. The high-flow GREEN Cats ensure maximum exhaust flow, resulting in better engine performance while meeting stringent emissions standards. The result is an aggressive exhaust note and performance gains that complement your vehicle's power.

Key Features

• Kooks GREEN Cats for better durability and emissions compliance, handling up to 750 RWHP.
• 304 stainless steel construction for maximum strength, corrosion resistance, and longevity.
• High-flow design to reduce backpressure and increase engine performance.
• Perfect OEM fitment with 3" diameter inlet and 2-1/2" outlet for seamless integration with factory exhaust.
• Provides an aggressive exhaust tone that enhances your Mustang’s presence on the road.
• Supersedes previous part number with upgraded Kooks GREEN Cats, ensuring superior performance and emissions compliance.

Benefits

• Improved horsepower and torque by reducing exhaust restrictions, optimizing flow, and improving overall engine performance.
• Enhanced durability and reliability thanks to the advanced Kooks GREEN Cats, designed for modern muscle cars with up to 750 RWHP.
• EPA-verified and compliant with emission standards, allowing you to legally drive in areas with strict emission regulations.
• Backed by Kooks’ limited warranty, ensuring long-term peace of mind and product support.
• Easy installation with direct fitment, requiring no modifications to your existing exhaust system.
• Aggressive exhaust sound that perfectly matches the Shelby GT500’s high-performance engine.

Product Specs

• Part Number: 11323500
• Material: 304 stainless steel for optimal durability and performance
• Finish: Stainless steel with a polished appearance
• Tubing Diameter: 3.000" inlet, 2-1/2" outlet (OEM compatible)
• Shape: H-Pipe design for improved exhaust flow
• Application: Automotive, specifically for 2007-2010 Ford Mustang Shelby GT500 with 5.4L engine

Install Difficulty Level

The installation of the Kooks 11323500 Catted H-Pipe is straightforward and can be completed in around 2-3 hours with basic hand tools. The direct bolt-on design makes it easy for both DIY enthusiasts and professional installers. No special modifications are necessary, and the part is designed to fit seamlessly with your vehicle’s OEM exhaust components.

Vehicle Fitment

• Make: Ford
• Model: Mustang Shelby GT500
• Year Range: 2007-2010
• Engine: 5.4L V8

For any questions or to report inaccuracies in the product description, contact the MPT Performance experts at (407) 636-7077 or by email.