Mishimoto 2014-2015 Subaru WRX and Forester 68°C Racing Thermostat – Enhanced Cooling Efficiency (MMTS-WRX-15)

Vendor:Mishimoto
Sale price $76.00 USD $68.95 USD
Sale 9.28% $7.05 USD (9.28%)
27 in stock!
Product Description

Mishimoto 2014-2015 Subaru WRX and Forester 68°C Racing Thermostat – Enhanced Cooling Efficiency (MMTS-WRX-15)

The Mishimoto MMTS-WRX-15 regulates coolant flow in the specified application. Check the application details below for the model, chassis or equipment requirements.

Specifications

Brand Mishimoto
Manufacturer part number MMTS-WRX-15
Product type Thermostats
Fitting angle 68 degrees
OEM Activation Temp C 88°C
OEM Activation Temp F 190.4°F
Engine Codes FA20DIT
Chassis Codes VA, SJ
Mishimoto Activation Temp (Fahrenheit) 165.2°F
Mishimoto Activation Temp (Celsius) 74°C
TechSpec Engine Codes FA20DIT--FA24DIT--FB20D--FB25DI
TechSpec Chassis Codes GU--VA--VB--SJ
TechSpec Includes (1) Mishimoto Thermostat--Mishimoto Lifetime Warranty
TechSpec Mishimoto Activation Temperature (F) 165.2
TechSpec OEM Activation Temperature (F) 190.4
SellingPoint01 Direct fit for the 2015-2021 Subaru WRX
SellingPoint02 Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures (Mishimoto thermostat activates at 165.2 F vs. stock 190.4 F)
SellingPoint03 Mishimoto Lifetime Warranty
Install Difficulty 3

Application

  • 2015+ Subaru WRX
  • 2014-2018 Subaru Forester XT
  • 2019-2025 Subaru Ascent
  • 2020-2025 Subaru Legacy
  • 2020-2025 Subaru Outback

Product details

  • Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures (Mishimoto thermostat activates at 165.2 F vs. stock 190.4 F)
  • Mishimoto Lifetime Warranty
  • N/A

Upgrade your Subaru WRX or Forester with the Mishimoto Part Number misMMTS-WRX-15 racing thermostat, designed specifically for models from 2014 to 2016. This high-performance thermostat features a lower activation temperature of approximately 165°F, compared to the stock 190°F, allowing coolant to circulate earlier in the engine's warm-up cycle. This early activation helps maintain cooler engine temperatures during both street driving and track use, reducing the risk of overheating and supporting consistent performance. Crafted to be a direct replacement for the factory thermostat, it ensures a precise fit and seamless installation without modifications. Constructed from durable materials, the Mishimoto thermostat is engineered to withstand high temperatures and harsh conditions, making it a reliable upgrade for enthusiasts seeking optimal thermal management.

This component is ideal for drivers who push their vehicles hard or seek improved cooling efficiency in modified setups, providing peace of mind with Mishimoto’s lifetime warranty. Whether you’re customizing your car for performance or simply want a more responsive cooling system, this thermostat helps your engine reach and maintain ideal operating temperatures more quickly, promoting engine longevity and efficiency.

Designed specifically for the 2015 Subaru WRX and compatible Forester models, this racing thermostat is a practical upgrade that enhances your vehicle’s cooling system, ensuring better thermal regulation and more reliable performance across various driving conditions.

Features:

  • Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures (activates at 165°F vs. stock 190°F)
  • Mishimoto Lifetime Warranty ensures long-term reliability and support
  • Direct replacement for factory thermostat for a seamless upgrade
  • Engineered for durability to withstand high temperatures and demanding conditions
  • Supports improved thermal regulation for street and track driving
SKU: misMMTS-WRX-15

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be processed the next business day.

Unless otherwise noted as "In Stock" with qty amount. Pre-Orders, Special orders, & Made to order items have an estimate of 5+ weeks for USA made parts and 10+ weeks for JDM/ Overseas parts. Please check with us for exact ETA as it will vary by brand and item.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $200.

Delivery Inspection & Damage Claims

Large, oversized, fragile, and performance parts must be inspected immediately upon delivery and before installation. Damage, missing parts, incorrect items, or cosmetic concerns must be reported within 3 business days of delivery with photos of the product, outer box, inner packaging, and shipping label.

Please keep all packaging until the item has been fully inspected. Claims may be denied if the item has been installed, mounted, modified, test-fitted, used, reported late, or if the packaging has been discarded.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs. Refusal to pay duties/taxes fees prior to delivery will have the product sent back to us. This will be treated a standard return and all fees including original and refusal shipping fees will be deducted from original amount.


Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders will take up to 7 business days to process & ship as sometimes we only have 1 international pickup a week.

In stock, non pre-orders or special order items can be returned within 30 days of the product arriving to your house or place of work.

30 days, unused. Refund = item price minus 20% restocking fee. Original shipping is non-refundable. Return shipping (if we provide label) is also deducted.

Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Pre-Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail

Any loan orders will have a 10% cancelation fee to cover the loan processing fees or 3rd party merchant fees. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.