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Reische Performance Thermostat - 170 Degree (11-18 GT, V6, GT350; 12-13 BOSS 302)

Market Price $65.00 You Save 12% ($8.00)
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$57.00

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  • Item 397318
  • MPN# Ford-50

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    Features, Video & 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 2011-2018 GT, V6, GT350, '12-'13 BOSS Mustangs

    Review & Installation Video

    Review & Install Video

    This is the Reische Performance 170-degree thermostat for 2011 and newer GT, V6, and GT350 Mustangs, and 2012 to 2013 Boss Mustangs. You're gonna wanna check this out if you're looking for a way to keep engine temps cooler, whether you've done some light modifications or tuning, or some more serious mods. Once you start modding, adding more power, and tuning your Mustang, you're then looking at potentially creating more heat. Over time, and depending on how much more heat you're looking at, you can run into a list of problems, from some very minor things, to some more serious things, like engine wear and detonation. A lower temperature thermostat like this one here can protect your engine from those issues and leave you with a more reliable, better-running car. The install for this is gonna be easy. It's a one-out-of-three wrenches on the difficulty meter, and you can plan on spending an hour getting this installed.The thought process here is that keeping your engine cooler has always been a way to get more longevity out of the car, and open the door to more power. Aftermarket thermostats like this one open sooner, which means that the coolant will circle to the rad sooner, which is then gonna keep the engine temperatures lower. And having a cooler running engine has long been known as a way to avoid detonation in super-charged cars, since it keeps the cylinders cooler.One of the nice things about this thermostat is that it's made with an OEM diaphragm and bypass controller. These are two critical parts of the thermostat that need to be fully functional so that this thermostat can work properly. This isn't a universal unit, it's a direct fit, and the OEM parts guarantee maximum efficiency.Now, customers usually ask about re-tuning to deal with the cooler engine temps and fan timing, and this is something that you're gonna wanna consider. And then again, most of you are probably installing this thermostat on cars that are already getting re-tuned due to the mods that you are or have already added, especially if we're talking about a super-charger. Cooler engine temps mean you can have a more aggressive tune with more timing, without detonation or knock, so overall, more performance.When it comes to price, you can expect to pay about $65 for this thermostat. This is currently the only 170-degree thermostat option on the site, and it's the only one made with OEM parts. You do have the option of going with a 160-degree thermostat from Mishimoto if you wanted to spend a little bit less money.As far as the install goes, this is an easy one. It's a one-out-of-three wrenches on the difficulty meter, and you can plan on spending an hour getting this installed. You will need a new bottle of coolant to top off the system once you're done with the install, and of course, either a jack and jack stands or a lift.You'll remove the plastic underbody work, drain the rad, and remove the intake pipe. Once that's out of the way, you'll have room to get to the thermostat housing. Now, that's held in by two bolts, so you're gonna remove those two bolts and remove the stock thermostat. The new thermostat installs exactly the same way. Just be sure to make sure you're using the O-ring and the gasket that comes with the new thermostat because the stock ones won't work properly with the new one. You're gonna reinstall your intake pipe, and you're ready to refill the coolant system, but don't forget to burp the system and get the air bubbles out. After you check for any leaks, you can reinstall the plastic underbody.That's going to wrap things up for the Reische Performance 170-degree thermostat, but you can always check it out more online, right here at americanmuscle.com.

    Protect that Power. If you're adding some bolt-on performance to your mustang, you're adding more heat and power loads. The Reische Performance Thermostat operates at 170 degrees compared to the 180 to 195 degrees of your OEM unit, which allows your motor to run cooler, longer, under higher output. Installing this thermostat is a simple but critical investment in protecting your engine.

    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 all 2011-2018 GT, V6, GT350, and 2012-2013 BOSS Mustangs.

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

    Fitment: 2011 2012 2013 2014 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Thermostat
    • (1) Gasket
    • Coolant Ratio/Additive Recommendations
    Installation Info
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • GT - 11, 12, 13, 14, 15, 16, 17, 18
    • GT350 - 15, 16, 17, 18
    • GT350R - 15, 16, 17, 18
    • V6 - 11, 12, 13, 14, 15, 16, 17

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    5 Questions / 5 Answers

    Ask a Question

    If I already have a map installed on my ECU with my handheld tuner, all I need to do is drop this in correct?

    JhonnyA

    • The Reische Performance Thermostat - 170 Degree does not require a tune, however we strongly recommend a tune to accommodate for the lower opening temperature of this thermostat. Any tune you have now would not have this accommodated for unless you specified this with your tuner.

      Rob D

    Helpful (0)

    I have heard complaints that the engine fans don't turn once this part is installed. I am considering buying this along with the Bama x4 tuner. Will the handheld tuner be able to adjust the engine fans or will I have to do that elsewhere?

    ZacT

    • The Reische Performance Thermostat will lower the temperature at which the thermostat opens by approximately 25 degrees, reducing the frequency of the electric cooling fans being commanded on due to lower coolant temperatures and not reaching their on point as often. Cooling fans on/of temps can be adjusted with a tuner, but it is not often recommended as this can push the car into running at temps that are not good for performance.

      Rob D

    Helpful (0)

    Will I need a tune after this? If not, will my check engine light come on? Thanks.

    Sunny

    • Tuning the motor after installing a lower temperature thermostat is critical to guarantee proper internal temperatures. If you do not tune the vehicle after installing the thermostat, you can expect premature wear of the motor and possible detonation.

      AMKody

    Helpful (0)

    This was in one of your buyers comments,Make sure to get a tune to change your fan settings! So what is it(need one or not),Thanks Glenn.

    GlennonP

    • If you’re advancing timing on your motor or operating a custom tune, a lower temperature thermostat is a critical investment in engine life. Installing this thermostat without loading a new tune can wear the motor or potentially lead to engine detonation.

      AMKody

    Helpful (0)

    I have Bama tuner,do you need to set the cooling fan with this Thermostat,thanks Glenn

    GlennonP

    • You should not need to make any adjustments in order to have a proper installation of the Reische Performance Thermostat. It is designed to be a direct replacement.

      AshleyK

    Helpful (0)

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    Customer Reviews (27) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Performance Gain 4.148148 4.1
    • Fit 4.925926 4.9



    • 5/5

      Installation Time: Less than 1 Hour

      January 07, 2017

      Lower engine temps for a safer engine

      Lowered head temps from 210 to 190. Make sure to get a tune to change your fan settings! Easy install but you will need to replace coolant because you will loose some during the install. You have to remove the airbox for installation.

      1337QU15C0P3R

      Year: 2016 Submodel: V6

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      April 27, 2017

      Performance Thermostat is the was to go!

      Easy Install by following the instructions. I changed the coolant after the Thermostat. I find the pony is running a lot cooler then before. Awesome product!

      JoeT

      Year: 2011 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      March 21, 2017

      Thermostat

      I really don't know how to rate this product. It is working as it should.

      Olynhill

      Year: 2014 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      March 16, 2017

      It actually helps alot

      Before switching this thermostat into my v6, it would run with cylinder temps of 196 with constant spikes to 212 and the rare spike of 235. Since installing ive only gotten to 196 when leaving the car running while not moving after a trip, but while moving it ranges from 174 to 183. Much healthier and actually helps MPG on dailly driving and oil temps while pushing it hard. All in all the peace of mind is definitely worth it! P.S. If there is a loud hissing/screaching its just the air getting out of the system, just squeeze the hoses as its running

      V6dailydriver

      Year: 2016 Submodel: V6

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      November 16, 2017

      Works great!

      With the factory 180’ tstat under normal highway use my CHT was between 216’ f and 226’ f. With the Reische 170’ my CHT is now between 194’ f and 204’ f. Definitely runs cooler now!

      AaronD

      Year: 2014 Submodel: GT

      Helpful (2)

    • 3/5

      July 13, 2017

      Good product

      I bought this product for my 2014 V6. It is a great product, but haven't noticed a difference. Car runs great, but temp are same as b4 probably because of bbk 73mm Throttle Body. But it is a great product and love AM.com

      Ryan

      Year: 2014 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      June 11, 2017

      Works as advertised

      Easy install Don't bother trying to avoid spilling fluid it's going to happen no matter what A must have for supercharged cars!!! Runs atleast 20* cooler now even in 98* weather

      AnthonyR

      Year: 2011 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      May 24, 2017

      Cooler Stang

      Helped my 2013 Mustang GT run cooler. Just what I wanted thanks Bama for the tune so the fans turn on at the right temperature. Awesome product.

      Supe

      Year: 2013 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Weekend

      January 08, 2017

      Nice and fit

      Doing great Great job AM its very helpul for us as your costumer I wish that more product like this will be release soon thank you

      Chanpol

      Year: 2015 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      December 22, 2017

      Reische Performance Thermostat - 170

      car was running around 198 now with the new 170 stat installed car is running around 188 which helps considerably during the florida summer

      Dl

      Year: 2012 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      November 04, 2017

      Works

      My car is tuned so I needed this so my Fan didn’t run all the time works as it should, brought my temps down

      RyanF

      Year: 2016 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Less than 1 Hour

      July 09, 2017

      Good product

      Teamed up with the Lucas Super Coolant additive will allow your car to run a lot cooler.

      GenesisG

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      July 08, 2017

      Definitely cooler!

      Could really tell the difference from the 170 on a supercharged 2014. I started to notice that my car would sit higher in the 209ish temp. With this thermostat I now will sit at 199 cylinder head for much longer. As long as I am not driving on a very long highway trip at 80mph this thermostat keeps it cooler. Once I compliment it with a larger radiator I'm sure I will have an extended benefit!

      JamesG

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 27, 2017

      Excellent

      Cylinder heads temps run 10 degrees cooler. Cooler temps, less detonation = more power.

      JamesO

      Year: 2015 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Less than 1 Hour

      April 08, 2017

      Cooling

      Not sure this really made any difference at all. Cooling is a tough upgrade, so no gain in performance from this upgrade

      BruceM

      Year: 2016 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      February 24, 2017

      208 to 195

      My Vortech V-3 2014 GT/CS went from 208 to 195 cyl. head temp. Would have took 5 min if I had done it w/ SC but wasn't bad after.

      Jim

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      February 13, 2018

      Exelent

      this product is fit in my car an function correct, my car is cool temperature and race very good

      Dragon2013

      Year: 2011 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      January 31, 2018

      Lower cylinder head temps

      Haven't seen my cylinder head temps touch 200 degrees since installing. My VMP stage two car kicks out some heat but I've yet to see anything in the 200's. I should've installed this sooner

      JewishSanta000

      Year: 2014 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      January 18, 2018

      Performance thermostat

      Just like it says when u buy it. It so far has dropped my temp by 6 to 8 degrees at least and not bad for the price.

      Dustin15

      Year: 2015 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      January 02, 2018

      Reische Thermostat

      It does the job well. Runs much cooler and is a must for boosted applications.

      1g4my2g

      Year: 2015 Submodel: GT

      Helpful (0)

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