What is the horsepower rating for this catalytic converter?

This Kooks GREEN Catalyst is rated for up to 375 horsepower per converter. When used as a pair, it can handle up to 750 horsepower.

Is this catalytic converter legal in California?

No, this catalytic converter is not CARB approved and cannot be shipped to California. It is certified to EPA standards for emissions reduction in other states.

What material is this catalytic converter made from?

This converter is handcrafted in the USA from T304 aircraft-quality steel, known for its durability and resistance to corrosion.

Kooks GE-90147 3" GREEN Catalyst 7" Length 400 Cell

Name: Kooks Universal 3 Inch GREEN Catalyst 7.5 Inch Length 400 cell
Brand: Kooks Headers
SKU: kooks-headers-kooks-universal-3-inch-green-catalyst-7-5-inch-length-400-cell-t14-491858
Price: 406.63 USD
Availability: InStock

Kooks Universal 3 Inch GREEN Catalyst 7.5 Inch Length 400 cell

$406.63

In Stock

Kooks Universal 3 Inch GREEN Catalyst 7.5 Inch Length 400 cell Catalytic Converter. Certified to EPA standards for emissions reduction.

Key Features

Fits custom exhaust fabrication projects.
3 inch inlet and outlet with a 4 inch O.D. body and 7 inch overall length.
Features a 400 CPSI high-flow substrate for reduced exhaust restriction.
Certified to EPA standards for emissions reduction.
Rated for up to 375 horsepower per converter, or 750 HP per pair.
Suitable for use with forced induction applications.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

If you're building a custom exhaust system and need to reduce harmful emissions, this Kooks GREEN Catalyst is a solid choice. It's designed to help you meet EPA standards without significantly choking off exhaust flow, making it suitable for a wide range of custom applications, including those with forced induction.

This converter features a 3-inch inlet and outlet, with a 4-inch outer diameter body and a 7-inch overall length. Inside, it uses a 400 CPSI (cells per square inch) high-flow substrate. This design allows it to handle up to 375 horsepower per converter, or 750 horsepower when used as a pair, while still helping to clean up exhaust gases. Kooks has been making performance exhaust parts for over 50 years, and this converter is handcrafted in the USA from T304 aircraft-quality steel, reflecting their commitment to quality and performance.

Keep in mind that this converter is not CARB approved and cannot be shipped to California. While it's designed to help reduce emissions and prevent check engine lights, elimination of the light is not guaranteed.