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The Mishimoto thermostatic oil cooler kit for 2002–2005 Subaru WRX/STi is a direct-fit cooling upgrade that adds approximately 0.5 qt of oil capacity and lowers oil temperatures by more than 20°F while keeping pressure loss minimal. The kit includes a 10-row stacked-plate cooler, precision mounting brackets, braided stainless lines, billet sandwich plate, and hardware, with optional rear-mounted thermostat control.
Mishimoto 02-05 Subaru WRX/STi Thermostatic Oil Cooler Kit
