Built for the 5.2L supercharged V8, Kooks 2"x3" headers with Green Catted pipes enhance exhaust flow for peak performance.
Constructed from mandrel-bent 304 stainless steel, the Kooks long tube header system for the 2020–2022 Mustang GT500 features 2-inch diameter primaries that feed into 3-inch collectors. The design supports efficient scavenging and reduced backpressure under high-performance conditions. Integrated into the system are high-efficiency EPA-certified Green catalytic converters, which are designed to balance emissions compliance with power retention. These converters utilize advanced substrate materials to maintain flow while reducing harmful output.
The headers are a direct bolt-on solution when paired with Kooks or compatible aftermarket exhaust components. Installation requires tuning and may affect OEM emissions system functionality depending on jurisdiction.
Key Features
Material: 304 stainless steel construction resists corrosion and ensures structural durability under heat
Primary Size: 2" mandrel-bent tubes with smooth transitions into 3" collectors for consistent flow
Cats: Includes Green high-flow catalytic converters with advanced emissions technology
Design: Long tube configuration tuned to increase midrange and top-end power on 5.2L V8 engines
Fitment: Made for 2020–2022 Ford Mustang GT500 (supercharged 5.2L only)
Connection Style: Designed to pair with factory or aftermarket cat-back exhaust systems
Compliance: Green cats are EPA-certified; not CARB approved—check local emissions regulations
Includes: Headers, Green catted connection pipes, clamps, and gaskets for installation
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