MST Performance Air Intake Kit – Toyota GR86 / Subaru BRZ (2021+) 2.4L
This air intake kit from MST Performance is a straightforward bolt-on upgrade designed specifically for the 2021+ Toyota GR86 and Subaru BRZ with the 2.4-litre naturally aspirated engine. It replaces the restrictive factory airbox with a larger, more efficient system that allows the engine to breathe more freely – improving performance and giving you a more engaging sound under acceleration.
A naturally aspirated engine (one without a turbocharger) relies heavily on airflow efficiency to generate power. The standard airbox fitted from the factory is built with cost and noise reduction in mind, which often means it limits how quickly and freely air can reach the engine. MST’s intake system addresses this by using a larger airbox housing and a high-flow pleated air filter, reducing restriction and helping the engine draw in more air with less effort.
What to Expect
The result is a noticeable improvement in throttle response – the engine feels more eager and reacts more quickly when you press the accelerator. MST claim gains of approximately 6-8hp and a small improvement in torque, which while modest on paper, can make the GR86 and BRZ feel sharper and more alive in everyday driving and on track. You’ll also notice a more pronounced induction sound, particularly during hard acceleration.
Key Features
- Designed specifically for the 2021+ Toyota GR86 and Subaru BRZ 2.4L
- Larger airbox housing compared to the standard factory unit
- 3.5-inch large-diameter pleated high-flow air filter
- Improved throttle response and a more aggressive induction note
- Direct fit installation – no cutting or modification required
- Easy to maintain and re-service
Fitment
This kit is designed to fit the 2021+ Toyota GR86 and Subaru BRZ with the 2.4-litre engine. Use the vehicle lookup tool on this page to confirm compatibility with your specific model and year, or check the Vehicle Fitment tab for full details.
Installation is straightforward and does not require specialist tools or mechanical modification, making it a popular first upgrade for GR86 and BRZ owners looking to get more from their engine without significant expense.
Additional Information
| Weight | 4 kg |
|---|---|
| Dimensions | 62 × 48 × 27 cm |
| Brand |




