Upgrade your 2011-2020 Dodge Durango with the Kooks Headers 3610H421 Header & Catted Connection Kit. Designed specifically for the 5.7L HEMI engine, this kit features 1-7/8 inch x 3 inch stainless steel long tube headers paired with 3 inch catted connection pipes. Enhance your vehicle's performance and sound with this high-quality exhaust system, known for its durability and efficiency. Kooks Headers has a legacy of over 50 years in the high-performance exhaust industry, creating products that excel in both street and race applications. The Kooks GREEN Cats included in this kit are EPA verified and engineered to handle up to 750 rear wheel horsepower, ensuring you get the most out of your Durango. Elevate your driving experience with Kooks - where quality meets performance! <b>Features:</b> * Material: Stainless steel construction for durability and longevity: Material: Stainless steel construction for durability and longevity * Compatibility: Fits 2011-2020 Dodge Durango 5.7L HEMI: Compatibility: Fits 2011-2020 Dodge Durango 5.7L HEMI * Performance: Designed to enhance horsepower and torque: Performance: Designed to enhance horsepower and torque * Eco-friendly: Features EPA verified Kooks GREEN Cats for compliance: Eco-friendly: Features EPA verified Kooks GREEN Cats for compliance * Installation: Complete kit includes headers and connection pipes: Installation: Complete kit includes headers and connection pipes