The Kooks 1372H640 2″ x 3″ Long-Tube Header & H.O. GREEN Catted Connection Kit is a precision-engineered performance exhaust upgrade for the 2023+ Ford F-150 Raptor R 5.2L supercharged V8. Designed to replace the restrictive OE header manifolds with mandrel-bent long tubes and high-output GREEN catalytic connections, these headers improve exhaust flow, reduce backpressure, and support stronger horsepower and torque gains when paired with a quality tune. Handcrafted in the USA from premium T304 stainless steel for corrosion resistance and durability, this kit lays the foundation for a louder, richer, and more aggressive exhaust tone without sacrificing street-ability. Ideal for enthusiasts building a high-performance Raptor R with upgraded cat-back systems, mid-pipes, or full exhaust systems.
Fitment Notes
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Designed specifically for 2023+ Ford F-150 Raptor R with the 5.2L Predator V8 engine
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Includes direct-fit long-tube headers with H.O. GREEN catted OEM connection pipes for easier integration with existing exhaust systems
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Works with factory or aftermarket exhaust downstream of the connection pipes
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Professional installation recommended
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Not CARB certified for street use in California when catalysts are altered or removed — check local emissions laws before installation
Included
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Pair of long-tube exhaust headers (T304 stainless)
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3″ H.O. GREEN catted connection pipes to mate to OEM or aftermarket exhaust
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Header mounting hardware and gaskets
Product Specs
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Material: T304 stainless steel — superior corrosion resistance and heat tolerance
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Primary Tube Diameter: 2″ mandrel-bent tubing for optimized flow
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Collector/Connection Size: 3″ connection to downstream exhaust
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Fitment: Direct bolt-on for Raptor R with minimal modification
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Made in: United States — handcrafted quality
Product Features
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Improved Exhaust Flow: Long-tube design increases scavenging and reduces backpressure over stock manifolds, helping unlock power gains when tuned
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H.O. GREEN Catalytic Connections: High-output GREEN cats offer a balance of performance and emissions-control support when used appropriately
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Premium Materials: High-grade T304 stainless construction provides long-term durability under high heat and harsh conditions
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Enhanced Exhaust Tone: Cleaner, deeper, and more aggressive V8 sound compared to factory manifolds
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Handcrafted in the USA: Built to precise quality standards by a respected exhaust specialist
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Supports Upstream Modifications: Pairs well with upgraded mid-pipes, cat-backs, and performance exhaust systems to amplify gains and tone