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.
Send the vehicle, engine and current setup if you want us to confirm the exact application before checkout.
| Manufacturer | MST Performance |
| Product Type | Cold air intake system |
| SKU | MST-FO-MK4020 |
| Material | Aluminium intake pipework |
| Vehicle Application | Ford Focus MK4 ST, 2014+ as listed - confirm generation and year against the part number |
| Included Items | All fittings for a direct OEM-replacement install |
The Focus MK4 ST is a serious hot hatch with a deliberately civilised intake. This MST Performance cold air intake system undoes that restraint, replacing the restrictive standard air box with precision-engineered aluminium pipework built for faster, smoother airflow into the turbo. The EcoBoost gains a cleaner feed and an induction note that matches the chassis' intent, while all fittings for a direct OEM-replacement install come in the box.
MST design their kits around accelerating airflow and minimising turbulence, with top-quality components throughout. On the Focus ST that translates to a freer route feeding the turbo and a harder-edged intake note under load - exactly the character the ST badge promises. It suits standard cars and already-tuned ones, so it works at any build stage. The matching MST boost pipe for the MK4 ST continues the hard-pipe route on the charge side.
This part is for the MK4-generation Focus ST. The applications table carries a 2014+ year notation, which spans earlier Focus generations too - so treat the generation as the deciding fact: confirm your car is the MK4 ST and check the part number against your exact model and build year 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.
It is catalogued for the MK4 ST. If your car is a MK3, check the correct MST part number for that generation rather than assuming this one fits.
No - it installs as a direct replacement for the standard air box using the supplied fittings, on standard or tuned cars.
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.
