
The Mishimoto thermostatic oil cooler kit for 2002–2005 Subaru WRX/STi in Stealth Black is a direct-fit solution that increases oil capacity by about 0.5 qt and reduces oil temperatures by more than 20°F with minimal pressure loss. The kit includes a 10-row stacked-plate cooler, application-specific brackets, stainless braided lines, billet sandwich plate, and hardware, and is available with a rear-mounted thermostat option.
Mishimoto 02-05 Subaru WRX/STi Thermostatic Oil Cooler Kit - Black