Kooks 2863H430 1-7/8″ Long Tube Headers w/ GREEN Y-Pipe for GM 6.2L Trucks

The Kooks 2863H430 Header and GREEN Connection Kit is engineered for 2019+ GM 1500 Series trucks and SUVs equipped with the 6.2L V8. This complete performance exhaust upgrade includes Kooks’ race-proven 1-7/8″ stainless steel long tube headers paired with a high-flow GREEN catted stainless steel Y-pipe, delivering substantial gains in horsepower, torque, and throttle response.

Built from premium 304 stainless steel, the long tube headers feature a full 3-inch collector design for maximum exhaust flow. The included GREEN catted Y-pipe transitions to the OEM-style 3.5-inch outlet, allowing seamless integration with the factory exhaust system. Designed for high-performance street use and towing applications, this Kooks system is dyno- and race-tested to ensure exceptional fitment, durability, and performance across GM’s 6.2L truck and SUV platforms.

Key Features

• 1-7/8″ stainless steel long tube headers

• Includes GREEN high-flow catted stainless steel Y-pipe

• Designed specifically for GM 6.2L 1500 Series trucks & SUVs

• Improves horsepower, torque, and exhaust scavenging

• Direct integration with OEM-style 3.5″ exhaust outlet

• Handcrafted in the USA and race-proven by Kooks

Technical Specs

• Header Type: Long Tube Headers

• Primary Tube Diameter: 1.875 in.

• Collector Diameter: 3.000 in.

• Y-Pipe Diameter: 3.000 in. → 3.500 in. (OEM outlet)

• Material: 304 Stainless Steel

• Catalysts Included: GREEN High-Flow Cats

• Connection Type: Y-Pipe to OEM exhaust outlet

• Manufacturing: Handcrafted in the USA

• Warranty: Limited Lifetime Warranty

Vehicle Fitment

• 2021–2023 Cadillac Escalade – 6.2L

• 2019–2024 Chevrolet Silverado 1500 High Country – 6.2L

• 2020 Chevrolet Silverado 1500 LT Trail Boss – 6.2L

• 2019–2024 Chevrolet Silverado 1500 LTZ – 6.2L

• 2020–2024 Chevrolet Silverado 1500 RST – 6.2L

• 2022–2024 Chevrolet Silverado 1500 ZR2 – 6.2L

• 2021–2024 Chevrolet Suburban – 6.2L

• 2021–2024 Chevrolet Tahoe High Country – 6.2L

• 2019–2024 GMC Sierra 1500 AT4 – 6.2L

• 2019–2024 GMC Sierra 1500 Denali – 6.2L

• 2019–2024 GMC Sierra 1500 SLT – 6.2L

• 2021–2024 GMC Yukon – 6.2L

• 2021–2024 GMC Yukon XL – 6.2L