What is it?
The Sky300 76°C Performance Thermostat is a plug-and-play replacement for the stock thermostat on Skyactiv 2.0 and 2.5 engines through 2020. It is designed to open at a lower temperature (76°C), allowing coolant to circulate sooner and keeping the engine at optimal operating temperature.
What benefits does it bring?
- 🌡️ Cooler engine: Opens sooner to allow the engine to run cooler, maintaining power even in hot weather or during demanding driving.
- 🔥 More sustained power: Prevents the control unit from reducing power when temperatures reach 95‑100°C, allowing peak performance to be maintained for longer.
- 🔪 Increased protection: Helps extend the life of the engine and cylinder head gasket components by better controlling temperatures.
- 👌 Easy installation: replaces the original thermostat without modification.
Compatibility and specifications
- Compatibility: Skyactiv 2.0, 2.5 and 2.5 Turbo engines of Mazda 3, Mazda 6 (including turbo) Mazda CX‑5 and Mazda CX‑9.
- Opening temperature: 76°C (lower than original).
- Material: OEM component modified for superior performance.
We recommend accompanying this upgrade with a reprogramming to maximize performance.
How to interpret performance results
Results belong to a specific vehicle and configuration. Compare baseline and final measurements using the same units, fuel, hardware and measurement conditions. Ask for the case that matches your project.
View Sky300 dyno results on Instagram