Mishimoto Ultimate Bundle Subaru STI 08-14

Restore your cooling system with the Mishimoto Ultimate Bundle. The Mishimoto Ultimate Bundle includes upgraded cooling components to replace items we've found to be failure-prone. For the 2008-2014 Subaru STI, we've bundled together our aluminum radiator, fan shroud, silicone radiator hose kit, racing thermostat, aluminum expansion and overflow tanks, and performance oil cooler. As the stand-out component, our aluminum radiator features durable TIG-welded end tanks. This radiator provides an increase in coolant capacity for superior heat dissipation and optimal cooling efficiency. To supplement our robust radiator, we've also included our performance fan shroud. In addition, we've included our incredibly durable silicone radiator hose kit. Mishimoto silicone hoses are constructed from high-grade 4-ply silicone with heat-resistant embedded fibers for superior heat and pressure tolerance. Finally, for maintaining low fluid temperatures, we've included our Subaru STI Racing Thermostat. The Mishimoto thermostat has a lower activation temperature (154.4F) compared to the factory thermostat (172.4F). The lower activation temperature allows coolant to flow through the engine earlier, reducing the risk of overheating in hot environments. We've also included our all-aluminum, fully TIG-welded coolant expansion tank and overflow tank within our Ultimate Bundle, providing maximum durability during repeated hot and cold transitions. Oil temperatures can also begin to rise on vehicles driven aggressively or on track. Because of this, we've included our direct-fit oil cooler kit for the STI proven to drop oil temperatures by 20F. Rounding out our Ultimate Bundle is our Titanium Turbo Blanket, explicitly designed to reduce engine bay temperatures and maintain turbocharger efficiency. Time to re-habilitate the cooling system of your STI with the Mishimoto Ultimate Bundle. As with all our products, this bundle includes the signature Mishimoto Lifetime Warranty.

TECH SPECS

Compatible Vehicles

Installation Guides

Purchase Includes

Warranty

Frequently Asked Questions
Frequently Bought Together
Navigating through the elements of the carousel is possible using the tab key. You can skip the carousel or go straight to carousel navigation using the skip links.Press to skip carouselPress to go to carousel navigation
Performance Aluminum Radiator, fits Subaru WRX 2008-2014/Subaru STI 2008-2021
Performance Aluminum Radiator, fits Subaru WRX 2008-2014/Subaru STI 2008-2021
Sale Price $349.95
Regular Price $385.00
Essentials Bundle, fits Subaru WRX/STI 2008-2014
Essentials Bundle, fits Subaru WRX/STI 2008-2014
Sale Price $844.95
Regular Price $978.00

Shipping Icon
FREE SHIPPING on orders over $149

Warranty Icon
Lifetime warranty on all orders
Established Icon
Established since 2005
Rewards Icon
Earn Mishi rewards points
Finance Icon
Finance options available
Also of Interest
Shop High-Performance Car Radiators
Boost Cooling with Durable Intercooler Cores
Universal Automotive Parts and Accessories
INFORMATION
DISCOVER
HELP & SUPPORT
NEWSLETTER
Sign up to our newsletter and stay up to date on all the latest news, products and events.

Email Address
Your Email

I accept Mishimoto’s Terms and consent to receive emails
This form is protected by reCAPTCHA - the Google Privacy Policy and Terms of Service apply.

Sema_Badge
Chilly-OpenArms_Copy
Mastercard Image
Visa Image
AMEX Image
Discover Image
Paypal Image
Apple Pay Image
Venmo Image
ft-socialicon-facebook
ft-socialicon-instagram
ft-socialicon-youtube
ft-socialicon-x
© 2025 Mishimoto. All rights reserved