Subaru WRX/STI Performance Aluminum Radiator, 2001–2007
CUSTOMIZE YOUR PRODUCT
Mishimoto offers Liquid Chill® Synthetic Engine Coolant in both Full Strength and 50/50 Premixed.
Your vehicle requires 2 gallons of Full Strength Liquid Chill® Synthetic Engine Coolant or 3 gallons of 50/50 Premixed Liquid Chill® Synthetic Engine Coolant.
If you’re paying with PayPal, your charge will be processed immediately. For credit cards, you’ll also be charged right away, but the charge will appear as a hold; no actual transfer of funds occurs until we ship your order.
We know quality is your priority, and it’s ours too. We’re working tirelessly to engineer the best product possible, but occasionally, delays may occur. In the event of a delay, we will keep you up-to-date on the timing of your new product.
For our international customers and those outside the continental US (Alaska and Hawaii), orders may take longer and international shipping charges may apply. Please contact us if you have specific questions regarding your order.
If you’ve got any further questions or concerns about your pre-sale order, our customer service team is here to help!
Thanks for your order!
Whether you drive a stock STI daily or rallycross a modified WRX, an efficient cooling system is key to extending the life of your flat-four. The plastic end tanks of the stock radiator are especially prone to cracking from years of constant variation in temperature. A radiator failure can result in overheating, head gasket failure, and other engine damage that can quickly put an end to a fun day at the track. Protect your investment with the Mishimoto performance radiator, engineered specifically for the 2001–2007 Subaru WRX/STI.
After identifying the radiator in these vehicles as a weak point, our engineers set out to provide an efficient, durable radiator that can take the abuse of competitive driving and provide the reliability you need for daily commuting. The Mishimoto Subaru radiator features an all-aluminum construction, which provides increased heat and pressure tolerance, improved heat dissipation, and improved cooling efficiency. The 100% brazed aluminum core and TIG-welded end tanks provide optimal durability and years of efficient and reliable service. This aluminum radiator is a complete bolt-in unit and replaces the factory radiator without requiring any modification to your Subaru. The Mishimoto Subaru Performance Aluminum Radiator includes a Mishimoto 1.3 Bar High-Pressure Radiator Cap. This cap effectively raises the boiling point of the coolant, thus providing a higher threshold for safe temperatures and resulting in a more efficient cooling system.
This radiator provides a significant increase in coolant capacity, which allows for aggressive driving while retaining safe coolant temperatures. Keep your Subaru on the street and out of the shop with the Mishimoto Subaru WRX and STI Performance Aluminum Radiator. As with all our products, this aluminum radiator includes the Mishimoto Lifetime Warranty.
Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.
For our complete warranty policy, please click here.
This item is for Manual Transmission vehicles. For automatic applications, please purchase optional Mishimoto Universal Transmission Cooler Kit.CautionThe provided Mishimoto radiator cap should replace the stock cap located on the expansion tank. The stock cap attached to the radiator should be installed on the Mishimoto Performance Aluminum Radiator. The Mishimoto radiator cap is a two-way valve, while the stock radiator cap is a single valve. Due to the difference in construction, the Mishimoto cap cannot be used on the radiator. If the Mishimoto cap is fit on the radiator, overheating may occur.It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation. For additional technical information, contact email@example.com.
Drain Plug Length
Drain Plug Thread Size
(M12) x 1.5
Tank Wall Thickness
Mishimoto RadiatorMishimoto Radiator Cap1/16" NPT PlugFan Mounting HardwareMagnetic Drain PlugMishimoto Lifetime Warranty
13.54" x 27.24"
March 2016 Issue
Question will be displayed after moderation.
By creating an account with our store, you will be able to move through the checkout process faster, store multiple shipping addresses, view and track your orders in your account and more.
If you have an account with us, please log in.
* Required Fields