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Reische Performance Thermostat - 170 Degree (07-14 GT500)

Market Price $71.99 You Save 17% ($11.99)
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  • Item 397319
  • MPN# Ford-G5

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    Features & Details

    • Custom Built from OEM Parts
    • Includes OEM diaphragm and Bypass Control
    • Ensures Maximum Cooling Efficiency
    • Direct Replacement Installation
    • Recommended for Tuned Motors, but Tuning Not Required
    • Protects Motor from Damaging Heat
    • Cooler Temps for More Timing Advancement
    • Fits 2007-2014 GT500 Mustangs
    Dissipate Heat.Your forced induction motor already puts out plenty of heat from that large blower. Adding more performance to your Shelby will also add even more heat. The Reische Performance Thermostat operates at 170 degrees compared to the 180 to 195 degrees of your OEM unit. This lower temperature thermostat helps protect your GT500 from engine wear and makes a great investment in engine life and incoming air temperatures, which can also adds more performance.

    Tune it? Cool it. If you're advancing timing on your motor or operating a custom tune, a lower temperature thermostat is a critical investment in engine life. Lower temperatures allow for safer timing advancement and tuning without causing engine wear or detonation, which can ruin your motor.

    Made to Fit Mustangs. Unlike cheaper, generic units that are "universal", each Reische Performance Thermostat is made using the same diaphragm and bypass control as OEM thermostats. Each unit is modified by hand with U.S made parts to ensure they run at the right temperature for your Mustang.

    All-Weather Capable. Running a lower temperature thermostat has been said to reduce performance – but with the Reische's consistent operation and 170-degree "sweet spot", no drivers have reported any loss of power or MPGs in colder weather.

    Application. The 170-Degree Reische Performance Thermostat is specifically designed as a direct replacement-upgrade for 2007-2014 GT500 Mustangs.

    Tuning Note. While no tuning is required for installation, we do highly recommend lowering your fan settings for more consistent coolant temperatures.

    Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 Details

    What's in the Box
    • (1) Thermostat
    • (1) Gasket
    • Coolant Ratio/Additive Recommendations
    Installation Info
    Will it fit my Mustang?

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    Customer Reviews (4) Write a Review

    Overall Rating 4.5

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Performance Gain 3.5 3.5
    • Fit 5 5

    • 5/5

      Installation Time: Less than 1 Hour

      October 12, 2017

      170 Thermostat

      Immediate difference, followed by a tune revision for lower fan settings keeps temps in check big time. Next up heat exchanger! Took 5 mins Max !


      Year: 2013 Submodel: GT500

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      August 09, 2017

      Simple, Easy must have on s/c

      Extremely easy to install had it done in less than 10 minutes. Seems a little cooler, works best when tuned.


      Year: 2010 Submodel: GT500

      Helpful (1)

    • 3/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      June 01, 2017

      installed by garage

      Its a thermostat.. I notice no performance or cooling change from a factory part..


      Year: 2012 Submodel: GT500

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 26, 2017

      it WORKS x-4 shows much cooler temps, very pleased

      Instant drop in analog gauge but hooked up my x-4 and did some comparison readings and this will help with heat soak big time. A must if you're running a tune


      Year: 2007 Submodel: GT500

      Helpful (3)

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