XForce Ford Mustang EcoBoost VAREX Cat-Back Exhaust 2.5″ – ES-FM19VMK-CBS
Upgrade your Ford Mustang EcoBoost with the XForce ES-FM19VMK-CBS VAREX Cat-Back Exhaust System. Built from premium 304 stainless steel, this twin 2.5-inch exhaust features an X-pipe, centre oval muffler, dual electronically controlled VAREX rear mufflers and aggressive quad 4-inch polished exhaust tips.
- Twin 2.5″ stainless steel cat-back system
- Dual VAREX electronically controlled rear mufflers
- X-pipe for improved exhaust pulse balance
- 304 stainless steel construction
- Quad 4″ polished exhaust tips
- Adjustable exhaust sound
- Designed for Ford Mustang 2.3 EcoBoost Fastback
- SKU: ES-FM19VMK-CBS
Only 1 left in stock
Delivery & Return
We aim to dispatch orders as quickly as possible using reliable UK courier services. Delivery times can vary depending on stock availability, supplier location and the type of product ordered.
Estimated delivery times are shown where available, but these should be treated as a guide rather than a guaranteed delivery date.
Some specialist, made-to-order, imported or supplier-direct performance parts may take longer to arrive. If you need a part by a specific date, we recommend checking availability before ordering.
Once your order has been dispatched, tracking information will be provided where available.
UK Delivery
We deliver throughout the United Kingdom.
Shipping charges are calculated at checkout based on the size, weight and destination of your order. Larger or heavier items may have an additional delivery charge.
Deliveries to the Scottish Highlands, Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and other remote locations may take longer or incur additional charges.
International Delivery
International shipping may be available for selected products and destinations.
Import duties, taxes, customs charges and local handling fees are the responsibility of the customer unless stated otherwise. These charges are not included in the product price or standard shipping cost.
Please check your local import requirements before placing an international order.
Incorrect, Damaged or Faulty Items
Please inspect your order as soon as it arrives.
If your item is damaged in transit, faulty or different from what you ordered, contact us as soon as possible with your order number and clear photographs where relevant.
We will review the issue and advise you of the appropriate next steps.
Vehicle Fitment & Compatibility
It is the customer’s responsibility to check that a product is suitable for their vehicle before installation.
Please verify the vehicle model, year, engine, chassis code, part number and any relevant brake, suspension or drivetrain specification before ordering.
If you are unsure about compatibility, contact us before purchase with your vehicle registration or VIN and the product SKU where possible.
We cannot accept responsibility for incorrect fitment caused by inaccurate vehicle information, non-standard modifications or aftermarket conversions that were not disclosed before purchase.
Special Order & Made-to-Order Products
Some performance parts are specially ordered, imported, customised or manufactured specifically for a customer.
These products may be subject to different cancellation and return conditions. Where applicable, this will be confirmed before the order is processed.
Refunds
Approved refunds are normally issued back to the original payment method after the returned item has been received and inspected.
Original delivery charges and return postage may not be refundable unless the item is faulty, damaged or supplied incorrectly.
Please allow time for your bank or payment provider to process the refund after it has been issued.
Need Help?
If you have any questions about delivery, returns or product compatibility, please contact Performance Car Parts UK before ordering. We will be happy to help you check product details and fitment information.
XForce Ford Mustang EcoBoost VAREX Cat-Back Exhaust – ES-FM19VMK-CBS
Give your Mustang EcoBoost a more distinctive exhaust note while retaining control over its sound with the XForce ES-FM19VMK-CBS VAREX Cat-Back Exhaust System.
Designed specifically for compatible Ford Mustang 2.3 EcoBoost Fastback models, this performance exhaust combines free-flowing twin 2.5-inch pipework with XForce’s electronically controlled VAREX muffler technology.
The system is manufactured from high-quality 304 stainless steel for excellent durability and corrosion resistance, making it suitable for performance cars used throughout the year.
Twin 2.5-Inch Performance Exhaust System
The ES-FM19VMK-CBS uses a twin 2.5-inch exhaust layout designed to provide efficient exhaust gas flow while producing a deeper and more purposeful Mustang exhaust note.
Mandrel-bent pipework helps maintain a consistent internal diameter through bends, reducing unnecessary restrictions compared with more restrictive factory exhaust layouts.
An X-pipe positioned ahead of the centre muffler helps equalise exhaust pulses between the two sides of the system. This contributes to a smoother exhaust tone while maintaining good exhaust flow.
XForce VAREX Adjustable Exhaust Sound
One of the main advantages of the XForce ES-FM19VMK-CBS is its pair of VAREX valved rear mufflers.
Instead of permanently choosing between a quiet road exhaust and an aggressive performance system, VAREX technology uses an electronically controlled internal valve to alter the route taken by the exhaust gases.
With the valves in a quieter position, exhaust gases are directed through a more restrictive chambered route to reduce sound levels.
Open the valves and the system allows a more direct exhaust path, creating a deeper and considerably more aggressive exhaust note.
This gives Mustang owners much greater flexibility when switching between everyday driving and occasions where a stronger performance sound is preferred.
Dual Oval VAREX Rear Mufflers
At the rear of the vehicle, the system uses dual oval VAREX mufflers with 3-inch inlets.
These combine the noise-control benefits of a conventional muffler with XForce’s variable exhaust valve system, allowing the driver to adjust the character of the exhaust rather than being limited to one fixed sound level.
Premium 304 Stainless Steel Construction
The complete exhaust system is manufactured using 304-grade stainless steel.
304 stainless steel offers excellent resistance to corrosion and heat, making it particularly suitable for performance exhaust applications and UK road conditions.
The stainless construction also provides a premium appearance while helping deliver long service life when correctly installed and maintained.
Quad 4-Inch Exhaust Tips
The system finishes with four polished 4-inch exhaust outlets, giving the rear of the Mustang a much more aggressive performance appearance.
The quad-tip configuration complements the Mustang’s wide rear profile while clearly distinguishing the system from the standard EcoBoost exhaust.
Optional XForce SmartBox Compatibility
Owners wanting additional control can pair compatible VAREX systems with the optional XForce SmartBox.
The SmartBox can provide Bluetooth smartphone control and advanced automatic valve operation based on parameters such as:
- Engine RPM
- Vehicle speed
- Throttle position
- GPS location
The SmartBox is an optional accessory and should not be assumed to be included with the exhaust unless specifically stated in the product package.
Why Choose the XForce ES-FM19VMK-CBS?
The XForce Mustang EcoBoost VAREX system is ideal for drivers looking for an exhaust that combines performance styling with adjustable sound.
Key advantages include:
- Adjustable VAREX exhaust volume
- Twin 2.5-inch performance pipework
- X-pipe exhaust layout
- Dual oval VAREX rear mufflers
- Premium 304 stainless steel construction
- Quad 4-inch polished exhaust tips
- Improved performance exhaust appearance
- Suitable for road cars where different exhaust sound levels are useful
Vehicle Compatibility
This exhaust is designed for compatible Ford Mustang 2.3 EcoBoost Fastback / Coupe models.
XForce specifically states that ES-FM19VMK-CBS does not fit convertible models.
Always confirm vehicle specification before ordering, particularly model year, body style and engine configuration.
FAQ
Does XForce ES-FM19VMK-CBS fit the Ford Mustang EcoBoost?
Yes. The ES-FM19VMK-CBS is designed for compatible Ford Mustang 2.3-litre EcoBoost Fastback models. Vehicle specification and production date should always be checked before ordering.
Does ES-FM19VMK-CBS fit the Mustang convertible?
No. XForce specifically states that the ES-FM19VMK-CBS does not fit convertible models.
What size is the XForce Mustang EcoBoost exhaust?
The system uses a twin 2.5-inch cat-back exhaust configuration.
What is XForce VAREX?
VAREX is XForce’s electronically controlled exhaust muffler technology. An internal valve changes the exhaust gas path, allowing the exhaust sound level to be adjusted.
Is the XForce ES-FM19VMK-CBS stainless steel?
Yes. The system is manufactured from 304-grade stainless steel.
Does it have an X-pipe?
Yes. The ES-FM19VMK-CBS uses an X-pipe positioned ahead of the centre muffler.
What exhaust tips are included?
The system features four polished 4-inch exhaust tips.
Can the XForce SmartBox be used with this exhaust?
Yes. XForce lists the system as compatible with its optional SmartBox, which can provide smartphone and automatic valve-control functionality.
Technical Specification
XForce Mustang EcoBoost VAREX Exhaust Technical Specification
Technical details for the XForce ES-FM19VMK-CBS twin 2.5-inch VAREX cat-back exhaust system
for compatible Ford Mustang 2.3 EcoBoost Fastback models.
| Brand | XForce |
|---|---|
| Product Type | VAREX Valved Cat-Back Exhaust System |
| Part Number / SKU | ES-FM19VMK-CBS |
| Vehicle Application | Ford Mustang 2.3 EcoBoost Fastback |
| Chassis | FN / S550 |
| Engine | 2.3L Turbocharged EcoBoost |
| System Type | Cat-Back |
| Pipe Diameter | Twin 2.5 inch |
| Construction | 304 Stainless Steel |
| Pipe Design | Mandrel-Bent Twin Pipework |
| Crossover | X-Pipe |
| Centre Muffler | Oval Centre Muffler |
| Rear Mufflers | Dual Oval VAREX Valved Mufflers |
| Rear Muffler Inlet | 3 inch |
| Valve Type | Electronically Controlled VAREX Exhaust Valves |
| Exhaust Tips | Quad 4 inch Polished Tips |
| SmartBox Compatibility | Compatible – SmartBox sold separately |
| Body Style | Fastback / Coupe |
| Convertible Compatibility | Not Compatible |
This system is designed for compatible Ford Mustang 2.3 EcoBoost Fastback models.
XForce specifies that ES-FM19VMK-CBS is not suitable for convertible models.
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Vehicle Fitment
Ford Mustang EcoBoost Vehicle Fitment
The XForce VAREX cat-back exhaust is designed for compatible Ford Mustang
2.3 EcoBoost Fastback models. Check your vehicle year, chassis, body style
and exhaust configuration before ordering.
| Year | Make | Model | Submodel / Chassis | Engine |
|---|---|---|---|---|
| 2019 | Ford | Mustang | EcoBoost Fastback – FN / S550 | 2.3L Turbo EcoBoost |
| 2020 | Ford | Mustang | EcoBoost Fastback – FN / S550 | 2.3L Turbo EcoBoost |
| 2021 | Ford | Mustang | EcoBoost Fastback – FN / S550 | 2.3L Turbo EcoBoost |
| 2022 | Ford | Mustang | EcoBoost Fastback – FN / S550 | 2.3L Turbo EcoBoost |
| 2023 | Ford | Mustang | EcoBoost Fastback – FN / S550 | 2.3L Turbo EcoBoost |
Suitable for compatible 2.3L EcoBoost Fastback / Coupe models only.
This exhaust is not compatible with Mustang Convertible models.
Always verify the vehicle production date and factory exhaust configuration before purchase.
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| Weight | 39.00 lbs |
|---|
Delivery & Returns
UK Delivery
We deliver throughout the United Kingdom using reliable courier services. Delivery times vary depending on stock availability, supplier location, product size and destination.
Shipping charges are calculated at checkout where applicable. Larger, heavier, specialist or supplier-direct items may incur additional delivery charges.
Dispatch Times
We aim to dispatch in-stock products as quickly as possible. Some specialist, imported, made-to-order or supplier-direct performance parts may require additional processing time.
If you require a product by a specific date, please contact us before ordering so availability can be checked.
Tracking
Tracking information will be provided where available once your order has been dispatched.
International Delivery
International shipping may be available for selected products and destinations. Import duties, taxes, customs charges and local handling fees are normally the responsibility of the customer unless otherwise stated.
Returns
Please contact us before returning an item. Products should be returned in accordance with our returns policy and in suitable condition where applicable.
Special-order, made-to-order, customised or imported products may be subject to different cancellation and return conditions.
Damaged, Faulty or Incorrect Items
Please inspect your order as soon as it arrives. If an item is damaged, faulty or different from what you ordered, contact us promptly with your order number and clear photographs where relevant.
Vehicle Fitment
It is the customer’s responsibility to confirm product compatibility before installation. If you are unsure, contact us with your vehicle registration or VIN and the product SKU before ordering.
