In stock
Not sure which one? Ask us to confirm fitment first →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-SUB-STI1501 |
| Material | Aluminium intake pipework |
| Vehicle Application | Subaru STI 2.5, 2015 onwards |
| Included Items | All fittings for a direct OEM-replacement install |
The 2015-on WRX STI kept the legendary 2.5 turbo boxer, and it still deserves better breathing than the restrictive standard air box allows. This MST Performance cold air intake system swaps that box for precision-engineered aluminium pipework, designed to accelerate airflow to the turbo while minimising turbulence. On an engine as characterful as the EJ25, a freer intake sharpens the whole experience - induction noise included. Fits STI 2.5 models from 2015 on, supplied with all fittings for a direct OEM-replacement install.
STI owners rarely leave things standard, and MST design for exactly that reality: their kits suit standard cars and already-tuned ones, built with top-quality components around faster, smoother airflow. Fitted to the 2.5 turbo it cleans up the route into the turbo and adds an intake voice that matches the car's character - useful on a standard car, near-essential on a build.
For the 2.5-litre turbo WRX STI from 2015 on. The standard WRX of the same era runs the 2.0 FA20DIT and takes the MST WRX 2.0 intake kit - so confirm which engine you have and match the part number 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.
The STI - the 2.5 turbo car from 2015 on. The 2.0 WRX uses a separate MST part, so check your engine before ordering.
Yes. MST build their kits for standard and already-tuned vehicles, so it belongs in a staged build as much as on a standard car.
Use the checked vehicle route, then confirm model year, engine, drivetrain, hardware and existing modifications on the product page or with our team before you commit.
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.
