Kooks Headers 21703300 3" GREEN Catted Stainless Steel X-Pipe 2014-2019 Corvette C7

The Kooks Headers 21703300 is a high-performance 3-inch stainless steel X-pipe with GREEN catalytic converters, engineered specifically for 2014-2019 Chevrolet Corvette C7 models including LT1, Z06 LT4, and ZR1 LT5 engines. This premium exhaust component features Kooks' advanced GREEN catalytic converter technology with enhanced precious metal catalyst coatings designed for superior performance in high-horsepower and forced induction applications.

Key Features:

• 3-inch mandrel-bent T304 stainless steel construction for maximum exhaust flow
• GREEN catalytic converters with enhanced precious metal coating for improved catalytic efficiency and heat resistance
• 49-state EPA certified and legal (not CARB compliant for California)
• Connects to 2-3/4" OEM-style factory exhaust systems
• Includes 3" x 2-3/4" mid-pipes for seamless integration
• Must be used with Kooks long tube headers
• 400 CPSI high-flow metallic substrate for reduced emissions without sacrificing performance
• Handcrafted in the USA with precision CNC manufacturing
• Dyno and race tested for maximum power gains
• Limited lifetime warranty to original purchaser

What Makes GREEN Cats Different:

Kooks' proprietary GREEN catalytic converter technology utilizes an enhanced coating with higher concentrations of platinum, palladium, and rhodium precious metals compared to standard catalytic converters. This advanced formulation provides superior catalytic reaction efficiency in modern high-performance engines while offering significantly improved heat resistance—critical for supercharged, turbocharged, and high-horsepower naturally aspirated applications. The GREEN coating helps eliminate check engine lights with a 90% success rate and ensures proper emissions performance in demanding conditions.

This X-pipe design improves exhaust scavenging and provides a more aggressive, performance-oriented exhaust note while maintaining emissions compliance. The natural stainless steel finish provides excellent corrosion resistance and durability. Professional installation is recommended, and a custom tune may be required for optimal performance.