If you're tearing apart your 2.0 or 2.5L engine, this is a great way to resolve the flow restrictions of the OEM t-stat. This setup really opens things up AND 25 degrees earlier at 154.4F. That allows precious coolant to flow into the radiator and start shedding heat sooner. Couple this thermostat with a Mishimoto performance aluminum radiator and you have the recipe for an engine that runs cool no matter the situation. The Mishimoto 2006-2015 Mazda MX-5 thermostat includes an OEM-quality housing for a perfect fit and, like all of our thermostats, it's backed by our Mishimoto Lifetime Warranty.