Know the landed cost before you order
Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.
Make the exhaust part of your HEMI-swapped Jeep
A Gen 3 HEMI brings a very different driving experience to your Wrangler. These Kooks conversion headers provide 1-3/4" primaries, 2-1/2" outlets and TORCA Swivel-Seal connections for the JK HEMI-swap arrangement.
SKU: 37202200
Headers for the conversion
O2 sensor bungs are included in the header design. Pair the TORCA outlets with the matching HEMI-swap exhaust components, rather than parts for the original Wrangler engine.
Plan the installation around your swap
The mounts, engine position and remaining conversion hardware determine the fit in your Jeep. Additional parts can be required. We can help you put the header and downstream pipework into one clear exhaust plan.
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Talk to us to discuss the right tuning route for your vehicle.
Matching products
The JK HEMI-swap GREEN Y-pipe is the matching 2-1/2-inch front connection for a Gen 3 HEMI-swapped JK. Match the remaining conversion hardware to the complete installation.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2018 | Jeep Wrangler JK | Gen 3 HEMI conversion | 37202200 | Gen 3 HEMI engine swap; custom fitting |
| 2007-2017 | Jeep Wrangler | Gen 3 HEMI conversion | 37202200 | Gen 3 HEMI engine swap; custom fitting |
Intended use
37202200: Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 37202200.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| SKU | 37202200 |
| Application | Supported Jeep JK with Gen 3 HEMI engine conversion |
| Material | 304 stainless steel |
| Primaries / outlets | 1-3/4" / 2-1/2" |
| Front exhaust joint | TORCA Swivel-Seal |
| Sensor provision | O2 bungs |
| Installation | Custom swap; additional fitting parts may be required |
Frequently asked questions
Will these fit a standard Wrangler engine?
They are conversion headers for an installed Gen 3 HEMI.
Do they use the same connection as the LS-swap headers?
This HEMI SKU uses 2-1/2" outlets. Match the downstream parts to the exact HEMI conversion headers.
