EPA-Certified Green Catalytic Converters from Kooks


While the EPA is making many attempts to tamper with motorsports, and our ability to modify our own vehicles with aftermarket parts, some parts brands are getting out ahead of the mess. That’s why Kooks has developed a line of EPA-certified catalytic converters. These catalytic converters are a great compromise for the performance enthusiasts who don’t want to worry about changing EPA guidelines.

The EPA certified catalytic converter line from Kooks are made for universal use. They come in 4 different styles to fit a huge variety of applications. These Green Cats handle exhaust temperatures up to 1,500 degrees Fahrenheit, and 900 horsepower. Learn more about it in the official release below.

Official Release:

The Green Revolution: Kooks first-to-market with game changing EPA-certified Catalytic Converters

Performance enthusiasts and weekend warriors who need to meet EPA guidelines but still want the raw power of Kooks Headers & Exhaust systems, have had their prayers answered.

The company recently released their highly anticipated line of Green Catalytic Converters, making Kooks the first North American muscle car and exhaust manufacturer with an integrated EPA-certified catalytic converter. The new Green Cats eliminate emissions related to problematic “check engine” lights.

With a 90% success rate, they meet all EPA federal emissions standards, a common problem among performance enthusiasts in emissions-restrictive states. Universal to all Kooks systems, the new Green Cats work on applications up to 900 HP and handle exhaust temperatures up to 1500 Fahrenheit. Ideal for naturally aspirated turbo charged and supercharged applications and come in 2.5 inch and 3 inch sizes.

Kooks Headers and Exhaust has been innovating header technology for more than 50 years. No other header company in the country can offer “custom” headers for many late-model domestic vehicles while still building handmade custom race headers that are used in applications making more than 3,000 horsepower. Learn more about these at KooksHeaders.com.



  • Meets all EPA federal emissions standards
  • Available in three different configurations
  • Can handle high heat and high horsepower applications
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