3" Stainless High Output GREEN Catted ULTRA X-Pipe Unleash the full potential of your 2006–2013 Corvette C6 Z06 or ZR1 with a Kooks H.O. GREEN Catted ULTRA X-Pipe engineered exclusively for LS7 and LS9 performance. Designed to integrate with 3" OEM-style exhaust systems, this upgraded ULTRA X configuration uses a full-length Long Merge to improve scavenging, enhance overall exhaust efficiency, and deliver the unmistakable X/H-inspired tone Corvette enthusiasts love. Equipped with H.O. 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 high-performance applications, this system pairs only with Kooks Long Tube Headers. Together, they create a smooth, unrestricted exhaust path that sharpens throttle response and elevates the driving experience of your LS-powered Corvette. Features & Benefits H.O. 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 Output 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 3" OEM (Z06/ZR1-style) rear exhaust systems Fitment Notes Designed for 2006–2013 Corvette C6 Z06/ZR1 (LS7/LS9) Requires Kooks Long Tube Headers Connects to 3" OEM (Z06/ZR1-Style) exhaust systems H.O. GREEN Cats support up to 1,000+ RWHP
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