11-14 Ford Mustang GT 5.0L 4V Kooks 1141H620 2" Header and Catted (X) Connection Kit

11-14 Ford Mustang GT 5.0L 4V Kooks 1141H620 2" Header and Catted (X) Connection Kit

Enhance the performance of your 2011-2014 Ford Mustang GT with the Kooks 1141H620 2" Header and Catted (X) Connection Kit. This premium exhaust system is designed to optimize airflow, increase horsepower, and deliver an aggressive exhaust sound, making it a must-have upgrade for enthusiasts who demand the best from their muscle car. Featuring Kooks’ innovative engineering, the kit includes high-quality components that improve both performance and durability.

This particular part number is an updated offering that now includes the Kooks GREEN Cats, an EPA-verified high-performance catalytic converter that is engineered for maximum durability and efficiency. Capable of supporting modern muscle cars up to 750 RWHP, the Kooks GREEN Cats offer a superior balance of performance and emissions compliance, making them perfect for owners who want both power and dependability. The Kooks 1141H620 kit has been superseded by part number 1141H630, which continues to offer the latest in technology and performance.

Key Features

• Includes Kooks’ EPA-verified Kooks GREEN Cats for superior durability and emissions compliance
• 3" primary tubing for improved exhaust flow and increased power output
• X-pipe design to optimize exhaust scavenging and improve engine performance
• Designed for 5.0L 4V V8 engines found in the 2011-2014 Ford Mustang GT
• High-flow, mandrel-bent stainless steel tubing for smooth airflow and maximum efficiency
• Finished with a corrosion-resistant 304 stainless steel for long-term performance and durability
• Complete kit includes headers, X-pipe, hardware, and gaskets for easy installation

Benefits

• Enhanced performance: The increased exhaust flow translates to better throttle response, increased horsepower, and more torque.
• EPA verified Kooks GREEN Cats: Meets emissions standards while supporting high-performance vehicles up to 750 RWHP, ideal for modern muscle cars.
• Aggressive exhaust tone: The X-pipe design gives your Mustang a deep, throaty exhaust note that stands out and signifies performance.
• Durable construction: Made with 304 stainless steel for exceptional strength and resistance to corrosion, ensuring a long lifespan.
• Peace of mind with warranty: Backed by a limited lifetime warranty, ensuring high-quality performance and customer satisfaction.

Product Specs

• Part Number: Kooks 1141H620
• Material: 304 stainless steel
• Color: Stainless steel finish
• Tube Diameter: 3.000 in.
• Shape: X-pipe design
• Finish: Polished stainless steel for a sleek look and long-lasting durability
• Included in Kit: 2" headers, X-pipe with Kooks GREEN Cats, mounting hardware, and gaskets
• Application: Automotive performance upgrade for 2011-2014 Ford Mustang GT 5.0L 4V V8

Install Difficulty Level

The installation of the Kooks 1141H620 Header and Catted (X) Connection Kit is moderately challenging and typically takes between 4 to 6 hours. The kit comes with all necessary hardware and gaskets, so with the proper tools, the process is manageable for most DIYers. For optimal results, professional installation is recommended if you are not familiar with exhaust system installs.

Vehicle Fitment

• Vehicle Year Range: 2011 - 2014
• Make: Ford
• Model: Mustang GT
• Engine: 5.0L 4V V8

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