09/03/2026
Cooling system maintenance never goes out of season.
This 2013 STI came in for a cooling system refresh with a **Koyorad aluminum radiator** and a **black silicone radiator hose kit**. While the Texas heat may be starting to ease up, factory plastic radiator end tanks and aging rubber hoses can fail any time of the year—and usually without much warning.
Upgrading before they become a problem is cheap insurance against an unexpected breakdown or an overheated engine.
We keep many Koyorad radiators, silicone hose kits, thermostats, and other common Subaru cooling system components in stock for both over-the-counter sales and professional in-house installation.
If your Subaru is still running its original radiator and hoses, now is a great time to replace them before they replace your plans.