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2015-2024 Mustang GT/Dark Horse 5.0L 4V 1-7/8in. x 3in. Stainless Headers w/High Output GREEN Catted Connection Pipes and OEM Adapters. 304 Stainless Steel Construction. 3/8in. Thick Laser Cut Flanges. 1-7/8in. Mandrel Bent Primaries. 3in. Collectors with Kooks Patented Scavenging Spike. Dual Bolt Pattern Header Flange. Kooks High Output GREEN Cats EPA verified 300 Cell High Flow Catalytic Converters. Kooks High Output GREEN Cats are engineered to perform in Modern Muscle cars making more than 750 RWHP Includes Gaskets; Oxygen Sensor Extension Harness; Clamps and Bolt Kit required for Installation. No additional parts required.

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Kooks

Kooks Headers & Exhaust is a leading American manufacturer of high-performance exhaust systems and headers, known for their precision-engineered stainless steel products. Founded in 1962 by George "Papa Kook" Kryssing, the brand has become a staple in the racing and performance car world, offering everything from long tube headers to complete exhaust systems. Based in North Carolina, Kooks serves both street and race applications, with a reputation for increasing horsepower and torque through improved exhaust flow.

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