Available to Order
Not sure which one? Ask us to confirm fitment first →For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
We confirm build spec, lead time and delivery arrangements with you before any money moves. Prefer to talk it through first?
| Specification | Details |
|---|---|
| Brand | Milltek Sport |
| System | Cat-back exhaust |
| Application | Ford Mustang S650 Fastback 2.3 EcoBoost, 2024+, with OE 5.0 GT rear diffuser |
| Main pipe diameter | 70 mm |
| Main pipework material | 304L stainless steel |
| Configuration | See the complete option table |
| E-mark approval | No |
More attitude for your EcoBoost, with sound control in your hand.
This Milltek cat-back brings a valved exhaust and quad-tailpipe look to the 2024+ Mustang S650 2.3 EcoBoost Fastback. The valve controller and two remotes are included, so the sound control is part of the package. Choose Resonated for the more restrained layout or Non-resonated for more volume, then pick the finish. The quad outlets require an OE 5.0 GT rear diffuser, supplied separately.
The supplied remote control is especially useful when you want the car to sound different from one drive to the next. Resonated versions add a front silencer; Non-resonated versions omit it. Both retain the rear silencers and valved outlets, so choosing the louder layout does not remove the valve-control feature.
Each row is one complete system. Select the matching option and part number when ordering.
| Version | SKU | Price | E-mark approval |
|---|---|---|---|
| Valved / Resonated / Polished | SSXFD434 | GBP 3,179.50 | No |
| Valved / Resonated / Cerakote Black | SSXFD435 | GBP 3,179.50 | No |
| Valved / Resonated / Brushed Titanium | SSXFD436 | GBP 3,519.86 | No |
| Valved / Resonated / Burnt/Blue Titanium | SSXFD437 | GBP 3,871.22 | No |
| Valved / Non-resonated / Burnt/Blue Titanium | SSXFD438 | GBP 3,774.16 | No |
| Valved / Non-resonated / Brushed Titanium | SSXFD439 | GBP 3,422.80 | No |
| Valved / Non-resonated / GT-100 Cerakote Black | SSXFD440 | GBP 3,082.43 | No |
| Valved / Non-resonated / Polished | SSXFD441 | GBP 3,082.43 | No |
OE downpipe adapter, axle pipes, rear silencers, valved outlet pipes including actuators, rear hanging brackets, MSVS065 valve controller with two remote controllers, selected trims and fitting kit. Resonated versions also include a front silencer. Non-resonated versions include a front silencer-delete pipe in place of the front silencer.
Ford Mustang S650 Fastback 2.3 EcoBoost, 2024+, with OE 5.0 GT rear diffuser
The required OE 5.0 GT diffuser is separate from the exhaust. This system is for the S650 Fastback application above. A professional installation gives the pipework, tip alignment and hot clearances the attention they need. The system should be checked again after its first heat cycle.
Clean the tailpipes regularly once they are cool, so road dirt and deposits do not become a bigger job later. Use a cleaning product suitable for your chosen tailpipe finish.
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
We would choose Resonated when motorway trips and everyday use matter. The additional silencer reduces selected sound frequencies, giving you the more restrained option. Non-resonated is the louder choice.
Yes. The kit includes the MSVS065 valve controller and two remotes, plus actuators in the valved outlet pipes. The OE 5.0 GT rear diffuser required for the quad-tailpipe fitment is separate.
No remap is required for this cat-back change with the rest of the exhaust in its standard configuration. Different requirements can apply if you also change downpipes or catalysts.
The silencer and pipe configuration determine the sound. Pick the finish for the look you want: changing the decorative tips within the same system layout is an appearance choice.
Milltek covers parts containing valves for 2 years or 80,000 km and electronic products for 2 years. Other qualifying parts in this system have lifetime cover. Cover is for the original purchaser and excludes fitting labour and failures caused by misuse or unauthorised modification. Keep your invoice and contact us if you need help with a claim.
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.
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.
