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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.
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Choose EcoBoost/GT or Dark Horse to match your car’s original diffuser arrangement. These are separate parts for the listed 2024–2026 cars. Both are dry gloss carbon fibre; the trim choice determines the application.
Inspired by the aggressive styling found on the Dark Horse platform, this rear diffuser helps transform the rear profile of the Mustang with a more exotic performance look. The diffuser design enhances the lower rear section of the vehicle, giving the car a wider and more planted visual stance from every angle.
The dry gloss carbon fiber finish gives the rear of the vehicle a high-end motorsport appearance that pairs perfectly with carbon fiber spoilers, side skirts, front splitters, rear wings, and other exterior aero upgrades. Whether the car is being built for shows, content, weekend events, street presence, or a complete track-inspired build, this diffuser helps create a more complete and aggressive rear-end identity.
This diffuser is designed to support both single tip and quad tip exhaust configurations , allowing customers flexibility depending on their exhaust setup and preferred rear-end appearance. Whether you are running a factory-style exhaust layout or a more aggressive quad tip setup, this diffuser is designed to complement the overall styling of the S650 platform.
For the owner, this upgrade adds more than just appearance — it adds value, presence, and a more premium finish to the overall build. Rear diffusers are one of the most noticeable rear aero upgrades, helping visually lower the car while giving it a more serious and performance-focused look.
This is not a basic rear bumper add-on. The value comes from the dry carbon fiber construction , the precision CNC mold production process , and the aggressive Dark Horse-inspired design language.
Exhaust Tip Compatibility
This diffuser is designed to work with both single tip and quad tip exhaust setups depending on the customer’s preferred rear-end appearance and exhaust configuration.
Each diffuser is manufactured by Auto Addict USA using dry carbon fiber and produced from a precision CNC mold to support track-inspired quality, consistent fitment, and refined body-line integration. The CNC mold process allows the diffuser to maintain sharper fin detail, cleaner shape accuracy, and a more premium fit compared to standard hand-shaped aftermarket components.
Instead of installing a generic diffuser that may not flow with the factory rear bumper lines, this diffuser is designed to visually integrate with the S650 platform while adding a cleaner and more premium motorsport appearance. The result is a rear-end upgrade that helps make the vehicle feel more complete, more aggressive, and more valuable.
Professional installation is highly recommended. This is a premium aftermarket carbon fiber rear diffuser and may require test fitting, alignment, adjustment, and proper body shop installation for best results. Please test fit all components before final installation. Minor adjustment may be required depending on vehicle condition, trim package, exhaust setup, and previous modifications.
| SKU | Trim | Vehicle or component application | Fitting requirements |
|---|---|---|---|
| AA_MSTG_S650_CF_DH_DIFF | EcoBoost/GT | 2024–2026 Ford Mustang S650 EcoBoost 2024–2026 Ford Mustang S650 GT | The EcoBoost/GT diffuser version is for EcoBoost and GT applications only. The Dark Horse diffuser version is for Dark Horse applications only. Choose the diffuser version that matches your car: EcoBoost/GT or Dark Horse. |
| AAUSA-SV-52202945937719 | Dark Horse | 2024–2026 Ford Mustang S650 Dark Horse | The EcoBoost/GT diffuser version is for EcoBoost and GT applications only. The Dark Horse diffuser version is for Dark Horse applications only. Choose the diffuser version that matches your car: EcoBoost/GT or Dark Horse. |
Delivery is quoted for this product. Contact Hoonies for a delivery quote and confirmation of availability before ordering.
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.
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.
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