Kooks 21703320 Stainless 3" GREEN Catted OEM-Connect ULTRA X Pipe for 2014-2019 Corvette C7

Kooks 21703320 Stainless 3" GREEN Catted OEM-Connect ULTRA X Pipe for 2014-2019 Corvette C7

The Kooks 3" Stainless GREEN Catted ULTRA X-Pipe from Accesspeed will unleash the full potential of your 2014-2019 Corvette C7. The Kooks GREENCatted ULTRA X-Pipe is engineered exclusively for maximum performance. Designed to integrate with 2-3/4" OEM-style exhaust systems, this upgraded ULTRA X configuration uses a full-length Long Merge to improve scavenging, enhance top-end power, and deliver the unmistakable X/H-inspired tone Corvette enthusiasts love.

Equipped with GREEN catalytic converters, this system refines exhaust character while preserving the aggressive personality expected from a ULTRA X layout. Expect a crisp, exotic edge under acceleration complemented by a deeper, more composed mid-range resonance, providing a balanced, performance-driven sound that stands out without overwhelming rasp. Crafted from premium 3" stainless steel and built for maximum flow, this system pairs only with Kooks Long Tube Headers. When combined, they create a free-breathing, track-proven exhaust path that sharpens throttle response and amplifies the raw character of your C7. Expect a crisp, exotic edge on acceleration with the deeper mid-range resonance associated with blended X/H systems.

Features & Benefits:

• GREEN Catted ULTRA X design for improved performance and refined exhaust tone
• Full-length Long Merge for enhanced exhaust pulse scavenging
• Includes front connections to interface directly with Kooks Long Tube Headers
• High-flow catalytic converters for smoother, more controlled sound output
• Mandrel-bent 3" stainless steel tubing for optimized flow and long-term durability
• CNC-built construction ensures precision fitment and consistent quality
• Connects directly to 2-3/4" OEM-style rear exhaust systems

Fitment Notes:

• Designed for 2014-2019 Corvette C7 LT1 / LT4 / LT5
• Requires Kooks Long Tube Headers
• Connects to 2-3/4" OEM exhaust systems
• GREEN Cats support up to 750 RWHP

Notes

This item may not be legal for sale or use on public roads, and may be for offroad use only. California laws prohibit the use of any aftermarket exhaust part or system that modifies, removes or replaces original equipment catalysts unless the California Air Resources Board has issued an Executive Order regarding such part or system or unless the part or system is exempted by being used only on racing vehicles on closed courses. Neither Accesspeed, Kooks Headers and Exhaust, nor any of their subsidiaries make any representation that any of their parts or systems has received such an Executive Order or that any of their parts or systems conform with the racing vehicles exemption. The purchasers are entirely responsible for informing themselves of applicable California laws and to comply with those laws.

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