Mishimoto Aluminum Radiator Subaru WRX 2008-2014 / STI 2008-2021 (MMRAD-STI-08)

Rated 4.5 out of 5
Based on 2 reviews
41 In stock
Cooling Radiators

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For your: 

Subaru WRX 2008 to 2014

Subaru STi 2008-2021

  • Full aluminum construction including durable, TIG-welded end tanks
  • Two-row, 1.65" thick brazed aluminum core
  • Increased fluid capacity and optimal heat dissipation
  • Provides efficient temperature reduction for use on the street, track, rallycross, or autocross course
  • Includes 1.3 Bar High-Pressure Radiator Cap , which effectively raises the boiling point of engine coolant and provides a safer, more efficient system
  • Includes Magnetic Drain Plug to capture any metallic debris/fragments in your cooling system
  • Mishimoto Lifetime Warranty

The Mishimoto performance aluminum radiator for the WRX and STI is designed and engineered to maximize cooling efficiency by up to 30%, boost engine functions, and most importantly protect your car from overheating. It is the ideal upgrade to the stock Subaru radiator whether you drive your vehicle daily or take it for track runs. The Mishimoto wrx radiator features a lightweight dual core, 100% brazed aluminum, and polished end tanks, enhancing the overall performance of your engine. Every Mishimoto aluminum radiator is a direct OEM fit making installation effortless with no cutting or modification required. All Mishimoto radiators come with a high pressure 1.3 bar Mishimoto radiator cap and a great warranty including accident protection.


This item is for Manual Transmission vehicles


Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

average rating 4.5 out of 5
Based on 2 reviews
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2 Reviews
Reviewed by Bill, from United States
I recommend this product
Rated 4 out of 5
Review posted

It's great but...

So my radiator welds didn't look like the type of quality I would expect from mishimoto. I have contacted them, and they are working with me. Their customer service is a little slow, but it's close to the holidays so I can understand that. They do stand by their products, and apart from my cosmetic issues, it's great. I also purchased the cooling plate, which I will review later, but this radiator has mounting holes for the oem fans should you choose to reuse them. Also coolant overflow fits nicely.

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Reviewed by Andrew N., from United States
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Absolutley Beautiful

The mishimoto radiator i recieved was in beautiful condition, absolutley flawless! Cannot wait to see cooler temps and the overall look of this peice installed. Import image racing shipped it very fast! The M looks amazing ! My performance shop only uses their radiators and hoses. Highly reccommend!

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Mishimoto Aluminum Radiator Subaru WRX 2008-2014 / STI 2008-2021 (MMRAD-STI-08)
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