Kooks Headers 2864H440 1-7/8" Long Tube Header & H.O. Green Catted Connection Kit

The Kooks Headers 2864H440 is a complete long tube header and High Output GREEN catted connection kit engineered for the 2023+ Cadillac Escalade V. This comprehensive kit pairs 1-7/8" x 3" stainless steel long tube headers with Kooks' most capable catalytic converter technology, delivering a full bolt-on exhaust upgrade that maximizes power and flow while retaining emissions compliance outside of California.

Key Features:

• 304 Stainless Steel Construction — Built from T304 aircraft-quality stainless steel for exceptional corrosion resistance and long-term durability
• 1-7/8" x 3" Primary Tubes — Mandrel-bent primaries paired with 3" collectors for maximum exhaust flow and scavenging efficiency
• 3/8" Thick Laser-Cut Flanges — Precision laser-cut flanges resist warping and ensure a leak-free seal at the cylinder head
• Kooks Patented Scavenging Spike — Integrated into every collector to optimize exhaust gas velocity and maximize power output
• H.O. GREEN Catalytic Converters — EPA-verified High Output GREEN Cats feature a 300-cell substrate in a 4.5" cat body, rated for naturally aspirated or forced induction applications up to 1,000 RWHP
• Oval Port / Stock Bolt Pattern — Direct bolt-on fitment using the factory cylinder head bolt pattern; no cutting or welding required
• Complete Hardware Included — Kit includes all gaskets, bolts, and oxygen sensor extensions required for installation
• Handcrafted in the USA — Every header is hand-built at Kooks' domestic facility and dyno- and race-tested for verified power gains
• Limited Lifetime Warranty — Backed by Kooks' limited lifetime warranty to the original purchaser

Kooks Headers has been a leader in high-performance exhaust manufacturing since 1962, with championships and records across NHRA, NMCA, NMRA, NASCAR, SCCA, and many other sanctioning bodies. The H.O. GREEN catted connection pipes bolt directly to the factory exhaust outlet, making this a complete, no-fabrication solution for serious Escalade V builds. A tune is recommended to achieve maximum power gains from the long tube header upgrade.

Note: This product is not legal for sale, installation, or use on a licensed vehicle in the state of California and does not meet CARB compliance requirements.