+ 24 horsepower*
@ 4500 RPM + 38 Torque (Nm)*
@ 4500 RPM ⚠️ Important Notice for U.S. Customers
Orders shipped to the U.S. may incur high import tariffs. Please consider this before placing an order.
Due to recent U.S. trade regulations, shipments containing aluminum parts may be subject to high import duties. These fees are determined and collected by U.S. Customs and are not included in your purchase price and are beyond our control.
The MST Air Intake Kit is now available for the 2015+ Subaru WRX STI 2.5L model.
The air intake system is designed to replace the stock airbox setup with custom heat shields and special heat-reflective coatings to isolate ambient engine heat. Featuring a 3” diameter high-flow air filter, it significantly improves airflow to unlock substantial horsepower and torque gains for an exceptional driving experience.
Features
- Compatible with stock ECU calibration or custom ECU tuning software
- Enhances throttle response, acceleration, and aggressive intake sound
- Special MAF aluminum air intake tube design
- Easy installation using standard hand tools
- The engine air filter should be cleaned every 20,000 km of usage and should be replaced at 60,000 km of usage
⚠️ Please make sure our product is compatible with your car before placing an order.
If you have any questions, please contact us.
*Due to potential variations in model years (especially transitional years) and different regional specifications by country, we highly recommend contacting us and providing a photo of your engine bay for verification before purchasing to ensure accuracy.
Video Reviews & Installation
Shipping Information
- Your packages may be subject to the customs fees and import duties of the country to which your order ships. These charges are always the recipient's responsibility.
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Shipping with UPS, DHL Express, or FedEx.
- For European Union customers, please contact us.
- We have distributors in North America (USA & Canada), Mexico, Europe, Malaysia and Indonesia, we do not provide shipping services to these locations. You may find the contact information on the dealer page.
- If you can't find the shipping option to your location or for more information, please contact us.
Return & Refund Policy for Duties-Related Returns
(Applicable to customers worldwide) - All import taxes, duties, and brokerage fees are the responsibility of the recipient.
- If you choose not to pay the required taxes and duties, resulting in the shipment being returned, a refund will only be issued after we physically receive the returned package.
- Any return shipping costs and import duties charged upon re-entry to our warehouse will be deducted from your total payment.
- The remaining balance, after all deductions, will then be refunded.
We strongly advise customers to check with their local customs office about applicable duties before placing an order.
By completing your purchase, you agree to these terms.
