Kooks Headers & Exhaust is a heritage performance exhaust manufacturer best known for high-quality stainless steel headers and complete exhaust systems. Built for serious street and track builds, Kooks products focus on fitment, durability, and the kind of airflow improvements enthusiasts chase when stepping up power.
Kooks Long Tube Headers & Mid Pipes: Jeep Grand Cherokee SRT & Trackhawk 2012 - 2021
- Unit price
- /per
PART # 3410H421 / 3410H621 / 3410H431 / 3410H631 / 3410H641
FREE GROUND SHIPPING
MADE IN THE USA
Adding product to your cart
Kooks Headers & Exhaust is a heritage performance exhaust manufacturer best known for high-quality stainless steel headers and complete exhaust systems. Built for serious street and track builds, Kooks products focus on fitment, durability, and the kind of airflow improvements enthusiasts chase when stepping up power.
-
Kooks Long Tube Headers & Mid Pipes
12-21 Jeep Grand Cherokee SRT & Trackhawk
3410H421 / 3410H621 / 3410H431 / 3410H631 / 3410H641
Kooks Long Tube Headers & Mid Pipes are engineered to deliver peak performance for 6.4L SRT and 6.2L Trackhawk vehicles, enhancing horsepower, torque, and exhaust efficiency. Crafted from 304 stainless steel, headers feature 1-7/8" or 2" primaries, TIG-welded, mandrel-bent construction, blended flanges, venturi merge spikes, and welded O2 bungs for precise exhaust flow and improved scavenging.
Paired with 3" catted mid-pipes—available in standard, GREEN, or HIGH OUTPUT GREEN options—this system optimizes exhaust performance while maintaining high durability. Headers include O2 extension harnesses and complete installation hardware, and bolt directly to the factory exhaust using Kooks connection pipes. Designed for high-output engines, this setup provides aggressive exhaust tones and improved throttle response. Not CARB compliant; not legal in California.- 304 stainless steel construction, TIG-welded and mandrel-bent
- 1-7/8" or 2" primaries with 3" collectors
- Integrated venturi merge spike for optimized scavenging
- Pre-welded O2 bungs; includes O2 extension harnesses
- TIG-welded, continuous tube primaries for durability
- Connection pipes required to interface with stock exhaust
- Mid-pipe options: 3" standard catted, GREEN catted, HIGH OUTPUT GREEN
- EPA-certified GREENCATS for 49-state legality (GREEN option)
- Boosts horsepower, torque, and throttle response
- Aggressive, high-performance exhaust tone
- Engineered for 6.2L Trackhawk & 6.4L SRT vehicles
- Not legal for sale, installation, or use in California; not CARB compliant
-
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
-
YEARMAKEMODELSUBMODEL2021 - 2025DodgeDurango6.2L Hellcat2018 - 2025DodgeDurango6.4L 3922018 - 2021JeepGrand Cherokee6.2L Trackhawk2015 - 2021JeepGrand Cherokee6.4L SRT2012 - 2014JeepGrand Cherokee6.4L SRT8
-
Kooks Long Tube Headers & Mid Pipes
12-21 Jeep Grand Cherokee SRT & Trackhawk
3410H421 / 3410H621 / 3410H431 / 3410H631 / 3410H641
Kooks Long Tube Headers & Mid Pipes are engineered to deliver peak performance for 6.4L SRT and 6.2L Trackhawk vehicles, enhancing horsepower, torque, and exhaust efficiency. Crafted from 304 stainless steel, headers feature 1-7/8" or 2" primaries, TIG-welded, mandrel-bent construction, blended flanges, venturi merge spikes, and welded O2 bungs for precise exhaust flow and improved scavenging.
Paired with 3" catted mid-pipes—available in standard, GREEN, or HIGH OUTPUT GREEN options—this system optimizes exhaust performance while maintaining high durability. Headers include O2 extension harnesses and complete installation hardware, and bolt directly to the factory exhaust using Kooks connection pipes. Designed for high-output engines, this setup provides aggressive exhaust tones and improved throttle response. Not CARB compliant; not legal in California.
- 304 stainless steel construction, TIG-welded and mandrel-bent
- 1-7/8" or 2" primaries with 3" collectors
- Integrated venturi merge spike for optimized scavenging
- Pre-welded O2 bungs; includes O2 extension harnesses
- TIG-welded, continuous tube primaries for durability
- Connection pipes required to interface with stock exhaust
- Mid-pipe options: 3" standard catted, GREEN catted, HIGH OUTPUT GREEN
- EPA-certified GREENCATS for 49-state legality (GREEN option)
- Boosts horsepower, torque, and throttle response
- Aggressive, high-performance exhaust tone
- Engineered for 6.2L Trackhawk & 6.4L SRT vehicles
- Not legal for sale, installation, or use in California; not CARB compliant
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.