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Mst performance subaru wrx sti 2. 5t air intake kit
Mst performance subaru wrx sti 2. 5t air intake kit - image 2
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Mst performance subaru wrx sti 2. 5t air intake kit - image 4

MST Performance Subaru WRX STi 2.5T Air Intake Kit

£398.54

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SKU: MST-SUB-STI1501 Categories: , , , , PP-PC-3

MST Performance Subaru WRX STi 2.5T Air Intake Kit (MST-SUB-STI1501)

If you want more from your Subaru WRX STi, improving the air supply to the engine is one of the most straightforward upgrades you can make. This air intake kit from MST Performance is designed specifically for the 2015+ Subaru WRX STi 2.5T, replacing the restrictive standard airbox with a freer-flowing setup that helps the turbocharger breathe more easily.

The result is improved throttle response – meaning the engine reacts more quickly and cleanly when you press the accelerator – along with a more noticeable induction sound under load. For drivers who want a more connected, responsive feel from their STi, this is a well-regarded starting point.

What’s Included

  • Black powder-coated heat shield – helps keep hot engine bay air away from the intake
  • Black powder-coated 4″ inlet pipe
  • 4″ red dry pleated performance filter – easy to clean and maintain, no oiling required
  • Full fitting hardware and step-by-step instructions

Performance Gains

MST Performance’s own dyno testing (laboratory testing on a rolling road) has recorded peak gains of 20-24bhp with this kit fitted. It’s worth noting that real-world results will vary depending on your car’s current state of tune, condition, and any other modifications already in place. These figures represent the upper end of what’s possible rather than a guaranteed outcome for every car.

Whether your STi is completely standard or already running a tune, this intake kit should make a positive contribution. It works particularly well alongside an ECU remap (a software adjustment to the engine’s control unit), where the two upgrades together can produce noticeably stronger results.

Build Quality

MST Performance are well established in the performance aftermarket for producing intake systems that use quality materials throughout. The powder-coated finish on the heat shield and inlet pipe offers durability and a clean appearance under the bonnet. The dry pleated filter is straightforward to maintain – simply clean it periodically rather than replacing it, keeping ongoing costs low.

Fitment: This kit is designed for the 2015+ Subaru WRX STi 2.5T. Please use the vehicle lookup tool on this page or check the Vehicle Fitment tab to confirm compatibility with your specific model before ordering.

Additional Information

Weight 4 kg
Dimensions 62 × 48 × 27 cm
Brand

MST-SUB-STI1501 Confirmed Fitment

Please note, this information is a combination of supplier provided compatibility data and our workshop expertise. While every effort has been made to ensure the accuracy of this information Progressive Parts Ltd are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle. More information is available from our Terms & Conditions

SUBARU (1 Model)
IMPREZA Saloon (GE, GV) 2.5 WRX STi AWD (GVF) (EJ257) | 301hp
Petrol 2457cc | Saloon | 2015 - 2021

Stock at Progressive Parts

Delivery timescales are given as estimates in good faith, but cannot be taken as precise or exact information. We highly advise against booking installation/workshop time or engaging in preparatory work until you've received and inspected the goods.

What do our stock statuses mean?

1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).

LOW STOCK in green means we're running low! 1 or 2 left on the shelf so act fast. Over evenings, weekends and bank holidays this stock can move quickly so please bear this in mind.

0 IN STOCK in blue means our primary warehouse does not have unallocated stock, but our UK partners do. Often these can be shipped quickly and efficiently. You'll be notified via the Track My Order page if further delays are unavoidable.

MADE TO ORDER in blue means we've partnered with a supplier which primarily makes their products to order. It's not on our shelf, but your order goes into production immediately.

0 IN STOCK in orange means everybody we work with is unfortunately out of stock. Stock is not available in the UK. The best course of action is to place an order to create an allocation from the next batch arriving.

OUT OF STOCK in red. This product is unavailable to order, for whatever reason we're unable to obtain stock or there is an issue with supply/lead times.

We're tuners too!

Our staff are car enthusiasts, we understand the need for speed... This includes getting your orders out the door as quickly and securely as possible!

In some instances, extended lead times are unavoidable. This is as labour-intensive and frustrating for us as it is for you, please know we are doing our best to facilitate your modification goals. Abuse of our staff or systems will not be tolerated.

Thank you, Team PP

In the words of the Vehicle Standards Agency (VCA), type approval provides "confirmation that production and samples of a design will meet specified performance standards".

For emissions components this encompasses noise, emissions and balanced back pressure, which have a strong influence on maintaining engine performance (power), and fuel efficiency. Type approval ensures that an aftermarket component will reach, or exceed the performance standard of the corresponding OE part.

Type-approval then, is a certain guarantee that an end user will receive a product of OE equivalent performance attributes.

Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.