Kooks 3410H431 1-7/8"Long Tube Headers &Catted Conn for 12-25 Jeep SRT/Tra

Vehicle Fitment

• 2012-2021 Jeep Grand Cherokee SRT8 (6.4L V8, RWD)
• 2012-2021 Jeep Grand Cherokee SRT (6.4L V8, RWD)
• 2018-2021 Jeep Grand Cherokee Trackhawk (6.2L Supercharged V8, RWD)
• 2018-2025 Dodge Durango SRT (6.4L V8, RWD)
• 2021-2025 Dodge Durango SRT Hellcat (6.2L Supercharged V8, RWD)

Features

• 1-7/8" diameter mandrel-bent stainless steel long tube headers for enhanced exhaust flow
• Includes high-flow 3" x 3" GREEN catted connection pipes for emissions compatibility
• High-flow design increases horsepower and torque over stock manifolds
• Merge collectors optimize scavenging for improved performance
• Precision laser-cut flanges for reliable sealing
• TIG-welded 304 stainless construction for corrosion resistance and strength
• Direct replacement for factory exhaust manifolds
• Includes gaskets, O2 sensor extensions, and all required hardware

Specifications

• Material: 304 stainless steel
• Primary tube diameter: 1.875"
• Collector outlet: 3.00"
• Connection pipe size: 3.00" x 3.00" GREEN catted OEM connection
• Header style: Long tube
• Drivetrain: RWD
• Emissions: High-flow GREEN catalytic connection pipes included
• Installation: Replaces factory manifolds; professional install recommended

Included Components

• 1x Pair of 1-7/8" stainless steel long tube headers
• 2x 3" x 3" GREEN high-flow catted connection pipes
• 1x Complete hardware set (gaskets, clamps, bolts)
• O2 sensor extensions

Product Description

The Kooks 3410H431 Long Tube Headers and Catted Connection Kit is a top-tier performance upgrade designed for 2012-2021 Jeep Grand Cherokee SRT/SRT8, 2018-2021 Grand Cherokee Trackhawk, and 2018-2025 Dodge Durango SRT and Durango SRT Hellcat SUVs. Built from heavy-wall 304 stainless steel with mandrel-bent 1-7/8" primaries, these headers significantly improve exhaust flow and reduce backpressure compared to the factory manifolds, unlocking noticeable gains in horsepower and torque.

Included with the headers are high-flow GREEN catted connection pipes that mate to the OEM exhaust system, offering a balance of emissions tolerance and performance. The headers feature optimized merge collectors for enhanced scavenging and are fully TIG-welded for strength and durability. This kit replaces the stock exhaust manifolds and connects directly to the existing exhaust with the included hardware and sensor extensions. Professional installation is recommended to ensure proper sealing and fitment. Whether building a street performance or track-focused build, the Kooks 3410H431 kit elevates engine response and delivers a more aggressive exhaust tone.