As a long time provider of high quality Thermostats for the Ecoboost and Coyote platforms, you may be searching Parker Performance for a RAT Stat for your own Ecoboost or Coyote vehicle. And if so, don't worry, we've got the solution for you! 

Fast order fulfillment, no delays, no missed shipping dates, etc. Get your Ecoboost and Coyote Thermostats from Parker Performance TODAY! Cooler temps incoming! 

Unfortunately, we're no longer offering the RAT Stat product for sale to our customers here at Parker Performance. This isn't due to any issues with the product itself, just a process issue with delays in getting them to our customers. While we've been absolutely thrilled with the product from day one, we've begun testing some others, and are happy to report that we've been having great success with our Mishimoto Thermostats! And with our Mishimoto units, they're almost always in stock, and ready to ship the same day! 

If you're looking for an Ecoboost 3.5L Thermostat or a Coyote 5.0L Thermostat, this is the one you want:

Mishimoto 11+ Ford Mustang V6/V8 160 Degree Racing Thermostat

We keep these in stock (by the hundreds, typically) and they will ship out the same day, no delays! 

Parker Performance is a home grown S550 Mustang specialty shop, located in New Port Richey, FL (about 30 minutes outside of Tampa and Clearwater). As experts on the S550 Mustang, we've tried, installed & tested just about every product & every setup. Allow us to use our expertise to help save you energy, time & money by guiding you to purchasing the correct parts for your EcoBoost Mustang, Mustang GT, GT350, and more. Parker Performance - For Enthusiasts, By Enthusiasts!