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.
Upgrade your Hellcat without giving up the rear exhaust you like
Pair 2" Kooks long tube headers with H.O. GREEN catted connections for your supercharged Hellcat. This kit finishes at the 2-3/4" OEM rear interface, making it the factory-connection choice alongside the separate full 3"-outlet package.
SKU: 3103H640
A matched high-output front system
The 2" primaries lead into 3" collectors and the supplied H.O. GREEN catted front pipes. The 2-3/4" rear outlet lets those parts join the OEM exhaust interface. It is a meaningful upgrade for a car whose engine, headers and catalyst choice should be considered together.
Choose the rear outlet before ordering
3103H640 is the OEM-outlet kit. If you are using a rear system that needs a full 3" connection, 3103H641 is the matching alternative. Choosing the correct outlet now keeps the kit suited to the exhaust already on your car.
Tuning for your exhaust upgrade
We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Contact us to discuss the right tuning route for your vehicle.
Matching products
For a 2015-2020 Challenger Hellcat, add the Kooks Hellcat cat-back if you want to replace the rear system as well. Its 2-3/4" inlet matches this OEM-outlet front package.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2015-2022 | Dodge Challenger SRT Hellcat | 6.2L V8 | 3103H640 | |
| 2018-2022 | Dodge Challenger SRT Hellcat Widebody | 6.2L V8 | 3103H640 | |
| 2018 | Dodge Challenger SRT Demon | 6.2L V8 | 3103H640 | |
| 2019-2022 | Dodge Challenger SRT Hellcat Redeye Widebody | 6.2L V8 | 3103H640 | |
| 2019-2022 | Dodge Challenger SRT Hellcat Redeye | 6.2L V8 | 3103H640 | |
| 2015-2020 | Dodge Charger SRT Hellcat | 6.2L V8 | 3103H640 | |
| 2021-2023 | Dodge Charger SRT Hellcat Widebody | 6.2L V8 | 3103H640 | |
| 2021-2023 | Dodge Charger SRT Hellcat Redeye Widebody | 6.2L V8 | 3103H640 |
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 | 3103H640 |
| Application | Charger / Challenger Hellcat 6.2L |
| Material | 304 stainless steel |
| Headers | 2" primaries; 3" collectors |
| Connections | H.O. GREEN catted |
| Rear outlet | 2-3/4" OEM interface |
Frequently asked questions
How is it different from 3103H641?
This kit uses the 2-3/4" OEM rear outlet. 3103H641 has a full 3" outlet for a matching aftermarket rear system.
Does the price include the front cats?
The H.O. GREEN catted connection pipes are part of the kit.
Do you recommend tuning with these headers?
We recommend tuning with every header installation. Talk to us about calibration for your vehicle, exhaust and other modifications.
