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Kooks /
Exhaust Headers
Kooks RWD HEMI Signature Series Stepped Headers | 31002502
Check vehicle fitment
£2,504.08
Available to Order
Not sure which one? Ask us to confirm fitment first →Delivery, customs and taxes 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.
Lead times and urgent orders Check timing before you commit
Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.
High value order, handled personally
We confirm build spec, lead time and delivery arrangements with you before any money moves. Prefer to talk it through first?
Technical specifications
| Specification | Details |
|---|---|
| SKU | 31002502 |
| Applications | Listed RWD Charger / Challenger / Chrysler 300 / Magnum 5.7, 6.1 and 6.4 HEMI applications |
| Material | 304 stainless steel |
| Primaries / collectors | Stepped 1-7/8" to 2"; 3" collectors |
| Flanges | 3/8" laser-cut; D-shaped ports; stock bolt pattern |
| Included | 755872 gaskets; CAS-105067 O2 kit; BK111 and BK114 bolt kits |
| 5.7 fitting provision | Dipstick spacer included; one OEM bolt must be reused |
| Required connections | Matching Kooks pipes; separate purchase |
| Drive layout | Rear-wheel drive only; excludes AWD |
Bring a stepped Kooks upgrade to your HEMI build
Choose Signature Series long tube headers for your supported rear-wheel-drive HEMI car. The stainless primaries step from 1-7/8" to 2" before the 3" collector, with gaskets, O2 extensions and bolt kits included. Matching Kooks front connections complete the installation.
SKU: 31002502
Stepped tubing with a defined head interface
The headers use mandrel-bent 304 stainless tubing, 3/8" laser-cut D-port flanges and the stock bolt pattern. The supported 5.7, 6.1 and 6.4 applications remain separate by vehicle, trim and year in the fitment table. This is the rear-wheel-drive layout.
Fitting parts included for the conversion
The kit includes 755872 gaskets, a CAS-105067 O2 extension harness kit, BK111 header bolts and BK114 ball-and-socket bolts. A dipstick spacer is included for 5.7-litre applications and requires one reused OEM bolt.
Choose your connections with the headers
Matching Kooks connection pipes are required and purchased separately. Choose their catalyst type and rear outlet around your engine modifications and retained rear system; the headers alone do not make the factory exhaust connection.
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.
Vehicle fitment
| Years | Vehicle / trim | Engine | Applicable SKU | Fitting conditions |
|---|---|---|---|---|
| 2006-2010 | Chrysler 300 C SRT8 | 6.1L V8 | 31002502 | Rear-wheel drive |
| 2009-2021 | Chrysler 300 C | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2010-2023 | Chrysler 300 S | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2012-2014 | Chrysler 300 SRT8 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2013-2014 | Chrysler 300 C Luxury | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2013 | Chrysler 300 SRT8 Core | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2015-2017 | Chrysler 300 C Platinum | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2023 | Chrysler 300 C | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2008-2010 | Dodge Challenger SRT8 | 6.1L V8 | 31002502 | Rear-wheel drive |
| 2009-2023 | Dodge Challenger R/T | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2011-2014 | Dodge Challenger SRT8 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2012 | Dodge Challenger R/T Classic | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2015-2018 | Dodge Challenger SRT 392 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2015-2016 | Dodge Challenger R/T Plus | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2015 | Dodge Challenger Scat Pack | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2016-2023 | Dodge Challenger R/T Scat Pack | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2016 | Dodge Challenger R/T Plus Shaker | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2016 | Dodge Challenger R/T Shaker | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2016 | Dodge Challenger 392 Hemi Scat Pack Shaker | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2017-2018 | Dodge Challenger T/A | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2017-2018 | Dodge Challenger R/T 392 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2017-2018 | Dodge Challenger T/A 392 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2019-2023 | Dodge Challenger R/T Scat Pack Widebody | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2006-2010 | Dodge Charger SRT8 | 6.1L V8 | 31002502 | Rear-wheel drive |
| 2009-2023 | Dodge Charger R/T | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2009-2013 | Dodge Charger SE | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2012-2023 | Dodge Charger Pursuit | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2012-2014 | Dodge Charger SRT8 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2015-2018 | Dodge Charger R/T Scat Pack | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2015-2018 | Dodge Charger SRT 392 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2015-2016 | Dodge Charger R/T Road & Track | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2017-2018 | Dodge Charger Daytona | 5.7L V8 | 31002502 | Rear-wheel drive |
| 2017-2018 | Dodge Charger Daytona 392 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2017-2018 | Dodge Charger R/T 392 | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2019-2023 | Dodge Charger Scat Pack | 6.4L V8 | 31002502 | Rear-wheel drive |
| 2006-2008 | Dodge Magnum SRT8 | 6.1L V8 | 31002502 | Rear-wheel drive |
Intended use
Competition, off-road and track use only. Not for use on public roads.
The competition-use waiver applies to 31002502.
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Check timing before you commit
Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.
Questions before you order
Frequently asked questions
Will these fit an AWD HEMI?
These headers are for the supported rear-wheel-drive applications.
Are the front connection pipes included?
They are a separate purchase. Choose matching Kooks connections for the required installation.
What is needed for the 5.7 dipstick spacer?
The spacer is included and uses one reused OEM bolt.
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.
Fitment first
Check fit before you order
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Check vehicle fitment
Need help with this product?
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.
