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Kooks 3410H631 2 in. Headers and GREEN Connection Kit 2012-2023 Jeep Grand Cherokee 2018-2023 Dodge Durango SRT Hellcat 6.2L
Kooks 3410H631 2 in. Headers and GREEN Connection Kit 2012-2023 Jeep Grand Cherokee 2018-2023 Dodge Durango SRT Hellcat 6.2L
Kooks 3410H631 2 in. Headers and GREEN Connection Kit 2012-2023 Jeep Grand Cherokee 2018-2023 Dodge Durango SRT Hellcat 6.2L
Kooks 3410H631 2 in. Headers and GREEN Connection Kit 2012-2023 Jeep Grand Cherokee 2018-2023 Dodge Durango SRT Hellcat 6.2L
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Kooks 3410H631 2 in. Headers and GREEN Connection Kit 2012-2023 Jeep Grand Cherokee 2018-2023 Dodge Durango SRT Hellcat 6.2L

$ 4,438.34 $ 3,994.51
$ 3,994.51

The Kooks headers & manifolds identified by manufacturer part number 3410H631 is supplied in the exact configuration described as 2" Stainless Headers & GREEN Catted OEM Conn. 2012-2020 Jeep/Durango 6.4L/6.2L. Confirm the complete part number, application, connection points, emissions requirements, and included components before ordering.

Key Features

  • The significant changes in exhaust flow affect air fuel ratios and require ECM recalibration to achieve optimal power output and safe operation.
  • Catted versions with Kooks GREEN or high flow catalytic converters comply with federal emissions standards but are not CARB certified for California.
  • Catted connection pipe versions include replacement high flow cats.
  • Most Kooks connection pipe kits are designed to mate with the factory cat back exhaust inlet diameter.
  • Long tube headers replace the factory exhaust manifolds and generally require removal of the factory catalytic converters.
  • Tight engine bay clearances on some platforms can increase install time.

Fitment

Years Make Model Application Notes
2012-2021 Jeep Grand Cherokee Verify engine, emissions equipment, transmission, and exhaust configuration
2018-2025 Dodge Durango Verify engine, emissions equipment, transmission, and exhaust configuration

Specifications

Brand Kooks Headers
Manufacturer Part Number 3410H631
Product Type Headers & Manifolds
Material Stainless steel
Nominal Dimensions 2 in
Fitment Type Vehicle Specific

What's Included

  • One Kooks component or kit in manufacturer packaging
  • Hardware only when listed for the exact part number

About Kooks Headers

Kooks manufactures performance exhaust components in the United States, including headers, connection pipes, catalytic-converter assemblies, cat-back systems, mufflers, flanges, and installation hardware. Exact part-number verification is essential because similar-looking components can use different engine, chassis, emissions, and connection configurations.

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Frequently Asked Questions

Will this Kooks headers & manifolds fit my 2012-2021 Jeep Grand Cherokee?
That year, make, and model range is listed. Confirm the engine, emissions equipment, transmission, body configuration, existing exhaust, and exact Kooks part number before ordering.

Will this connect to the factory exhaust?
Factory connection compatibility depends on the exact part number. Verify collector and outlet size, required Kooks connection pipes, catalytic-converter configuration, and every note in the current Kooks listing.

What should be checked after installation?
Confirm exhaust clearance, hanger alignment, fastener torque, oxygen-sensor wiring, leak-free joints, and adequate distance from fuel lines, brake lines, wiring, and bodywork.

Installation Instructions

  1. Verify the exact part number, application, emissions configuration, connection sizes, and package contents before disassembly.
  2. Support the vehicle safely and follow the factory service procedure together with the current Kooks instructions for this part number.
  3. Test-fit every component before cutting, welding, or permanently tightening the exhaust system.
  4. Route oxygen-sensor wiring and nearby hoses, lines, and cables away from heat, sharp edges, and moving parts.
  5. Torque fasteners in the specified sequence, inspect for leaks and clearance, and recheck accessible connections after initial heat cycles.
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Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

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