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The Mishimoto silicone radiator hose kit for 2001–2007 Subaru WRX and WRX STI provides an OEM-replacement fit with a dual-layer silicone construction and heat-resistant embedded fibers. Built to tolerate higher temperatures—rated to 330°F—the kit helps reduce heat transfer and increase pressure tolerance compared with a standard rubber hose, offering a durable cooling upgrade for those models.
Mishimoto 01-07 Subaru WRX / WRX STI Black Silicone Hose Kit
