11-24 Dodge Durango / Jeep Grand Cherokee 5.7L Hemi Long Tube Headers & Mid Pipes 3610H221 / 3610H231 / 3610H421 / 3610H431. Choose from 1 3/4" or 1 7/8" Primaries, and either Race Catted or Green Catted Mid Pipes.
3610H431 - 1 3/4" Long Tube Headers PLUS Green Catted Mid Pipes
These products are NOT legal for sale, installation, or use on a licensed vehicle in the state of California, and they do NOT meet CARB compliance.
Kooks 5.7L Hemi Long Tube Headers are top of the line for the 11+ Durango / Grand Cherokee. Kooks builds all of their products to the highest standard, and these are possibly the best headers you can buy for your vehicle. They feature 1 3/4 or 1 7/8 Primaries with O2 Bungs welded in. This system is also available w/ Kooks 3" Mid-pipe with high flow metallic catalytic converters. Both are made of stainless steel and engineered to the same high standard as Kooks other products!
What Sets Kooks Apart?
Kooks is known for building the best high end consumer headers in the world. This header is constructed with the below high end features!
Tig welded with all 304 (aircraft grade) mandrel bent stainless steel construction
Integrated venturi merge spike for better savaging and less collector turbulence
Primaries blended into the flange for better flow
Leak Proof Ball Flange collector for trouble free ownership
Each primary tube is one continuous piece of tubing. Some competitors weld several pieces of tubing to create one primary, which is a weaker design
1 3/4" or 1 7/8" Stainless Steel Long tube Headers
O2 extensions, gaskets, Stage 8 Locking Header bolts, and all installation hardware included
Must be used with Kooks Y-Pipe
Catted Mid Pipes
3" x OEM Stainless Steel Race Catted Connection Pipe
Includes Kooks High Flow Race Catalytic Converters
OEM outlet for use with stock exhaust
Must be used with Kooks Headers
These products are NOT legal for sale, installation, or use on a licensed vehicle in the state of California, and they do NOT meet CARB compliance
GREEN Catted Mid Pipes
3" x OEM Stainless Steel Ultra High Performance GREEN Catted (with GREENCATS) Connection Pipe
Includes Kooks EPA certified Ultra High Performance GREEN Catalytic Converters
OEM outlet for use with stock exhaust
Must be used with Kooks Headers
These products are NOT legal for sale, installation, or use on a licensed vehicle in the state of California, and they do NOT meet CARB compliance
Shipping Information
Shipping: Free Shipping!
Applications & Details
Part #: 3610H221 / 3610H231 / 3610H421 / 3101H420
Brand: Kooks
Availability Remarks: NORMALLY SHIPS IN 24-48 HOURS
