Mishimoto MMTS-BRZ-13 Racing Thermostat for 13-25 Subaru BRZ FA20/FA24

Vehicle Fitment

• 2013-2025 Subaru BRZ (FA20DIT & FA24D, AWD)
• Also fits 2013-2016 Scion FR-S & 2017-2025 Toyota GT86/GR86 (varies by engine)
• Fitment confirmed through 2025. Coverage beyond 2025 unconfirmed at time of listing.

Features

• Performance-oriented racing thermostat for improved engine cooling efficiency
• Direct-fit replacement for original equipment thermostat
• Opens at a lower temperature (~168 °F) to allow coolant flow sooner
• Promotes lower engine operating temperatures under load or track use
• Improves heat management in stock or modified FA20 and FA24 engines
• Helps reduce overheating during spirited driving or hot ambient conditions
• Constructed to OEM-quality tolerances for reliable performance
• Backed by Mishimoto Limited Lifetime Warranty

Specifications

• Part type: Racing thermostat (engine coolant)
• Activation temperature: ~168 °F (~76 °C)
• OEM activation temperature: ~203 °F (~95 °C)
• Compatible engines: Subaru FA20DIT & FA24D, Toyota 4U-GSE
• Construction: Direct-fit OEM replacement thermostat
• Mounting: Standard thermostat housing connection with included O-ring gasket

Included Components

• 1x Mishimoto MMTS-BRZ-13 racing thermostat
• 1x High-quality rubber O-ring gasket
• Installation instructions

Product Description

The Mishimoto MMTS-BRZ-13 Racing Thermostat is a performance replacement thermostat engineered for the 2013 and newer Subaru BRZ (FA20DIT and FA24D engines) and compatible 2013-2016 Scion FR-S and 2017+ Toyota GT86/GR86 models. Designed to open at a lower temperature (~168 °F) than the stock thermostat (~203 °F), this unit allows coolant to begin circulating through the engine and radiator earlier in the warm-up cycle, which can help maintain cooler engine temperatures under heavy load, spirited driving, or track use.

As a direct-fit replacement, the MMTS-BRZ-13 installs into the OEM thermostat housing with the included high-quality O-ring gasket for a secure seal. It's suitable for both stock engines and lightly modified setups where improved heat management is desired without sacrificing normal warm-up performance. Backed by Mishimoto's Limited Lifetime Warranty, this racing thermostat offers reliable long-term performance for drivers seeking enhanced cooling control on street or track applications.