MST Cold Air Intake Kit - 2022-2026 GR86 / Subaru BRZ 2.4L

V2 Enclosed Airbox Intake for the FA24 GR86 and BRZ

The MST GR8602 is the V2 cold air intake for the 2022-2026 Toyota GR86 and Subaru BRZ equipped with the FA24 2.4L naturally aspirated engine. MST redesigned the airbox for the V2 with an additional intake port that significantly increases the volume of incoming cold air, paired with a wide-mouth intake duct and a 152mm high-flow filter. On the dyno, MST recorded approximately 8 to 10 hp and 12 Nm of torque over the factory intake. On a naturally aspirated sports car with a well-engineered factory intake, those are real numbers earned through genuine airflow improvement.

Specs & Highlights

• PE closed-design airbox with additional intake port for increased cold air volume
• Clear top cover for visual filter inspection without removing hardware
• Wide-mouth intake duct minimizes pressure drop across the intake path
• 152mm reusable high-flow air filter
• Dyno-proven gains: approximately +8 to 10 hp and +12 Nm torque
• Improved throttle response across the RPM range
• More audible intake induction sound at high RPM
• Direct bolt-on fit to stock FA24 airbox mounting locations
• Uses factory MAF sensor and hardware

Additional Intake Port: More Cold Air Volume

The key design change in the V2 airbox is the additional intake port. On a naturally aspirated engine, total airflow volume is the primary limiting factor at peak output. Cold air enters the intake passively rather than being forced by a turbocharger, which means the size of the opening matters more than on a forced-induction setup. MST's added port increases the area through which cold air can enter the sealed airbox, delivering a larger volume of denser, cooler air to the throttle body at high RPM. That is where the 8 to 10 hp comes from: not just a filter swap, but a genuine increase in air delivery capacity.

Wide-Mouth Intake Duct

The wide-mouth intake duct creates a smooth, low-restriction path between the cold air source and the airbox opening. On a naturally aspirated engine where every point of intake restriction translates directly into lost potential, duct geometry is not a cosmetic decision. MST's wide-mouth design minimizes pressure drop across the intake path, ensuring the additional airbox port capacity is not bottlenecked before the air gets there.

8 to 10 HP on a Naturally Aspirated Platform

Gaining 8 to 10 hp from an intake on a naturally aspirated engine is a meaningful result. Turbocharged engines can pick up similar numbers from a filter alone because the turbocharger can compensate for restriction changes. NA motors give up nothing easily: every horsepower comes from optimizing the air path. MST's dyno data is a product of the additional intake port, wide-mouth duct, and 152mm filter working as a system. Swap one element for a lesser part and the gain shrinks. The kit is designed as a complete package, and the results reflect that.

MST Performance Spotlight

MST Performance is a Taiwan-based manufacturer specializing in cold air intake systems for sport compact and performance vehicles. Their engineering approach centers on application-specific airbox designs that solve the problems the factory intake leaves behind: heat soak, restricted airflow, and limited filter access. Every MST kit is built around a fully enclosed airbox to keep intake temps consistent, a clear top cover so filter condition is visible without removing anything, and a high-flow 152mm filter that flows more than the stock unit without requiring oil or special maintenance. Hardware, mounting points, and MAF sensor compatibility are all carried over from the factory setup, making installation and removal clean and reversible.

Everything Included

• V2 closed-design airbox with additional intake port
• Wide-mouth intake duct
• 152mm high-flow air filter
• Clear top cover
• All hardware and instructions

The FT Breakdown

The MST GR8602 is the intake for FA24 GR86 and BRZ owners who want real performance, not just intake noise. The additional airbox port and wide-mouth duct do actual work on a naturally aspirated platform, and 8 to 10 hp is a meaningful increase for a car in this category. The clear top cover and direct-fit installation keep it easy to maintain and easy to remove. If you want the most effective bolt-on intake available for the FA24 platform, this is it.