Kooks Headers 1142H230 1-3/4" Long Tube Headers with Green Catted X-Pipe Kit 2011-2014 Shelby GT500

The Kooks Headers 1142H230 is a complete long tube header and catalytic converter X-pipe connection system engineered specifically for 2011-2014 Ford Shelby GT500 models equipped with 5.4L and 5.8L supercharged engines. This premium stainless steel exhaust system combines 1-3/4 inch diameter primary tubes with Kooks' high-flow GREEN catalytic converter X-pipe for maximum performance gains while maintaining emissions compliance.

Key Features:

• 1-3/4 inch diameter stainless steel primary tubes for optimal exhaust flow
• 3-inch collector design maximizes scavenging and power output
• GREEN series high-flow catalytic converters maintain emissions compliance
• X-pipe connection configuration improves exhaust scavenging and sound quality
• Precision mandrel-bent tubing prevents flow restrictions
• TIG welded construction ensures leak-free performance
• 304 stainless steel construction resists corrosion and heat discoloration
• Complete bolt-on kit includes all necessary hardware and gaskets
• Hand-crafted in the USA with over 50 years of exhaust engineering expertise

This system delivers significant horsepower and torque gains over factory exhaust components while producing an aggressive exhaust note. The GREEN catalytic converters provide excellent flow characteristics while meeting emissions requirements for street-legal applications. Kooks Headers are trusted by professional racers and enthusiasts across NHRA, NMRA, NASCAR, and numerous other motorsports organizations.