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The Mishimoto CVT transmission cooler kit for 2015–2021 Subaru WRX adds a front-mounted 19-row oil cooler to work with the stock cooler and reduce transmission fluid temperatures under high stress. Engineered for heavy use, testing showed consistent 20°F (6.7°C) drops in fluid temps. It installs as a direct-fit kit with no cutting required, improving thermal capacity for track or towing applications.
Mishimoto 15 Subaru WRX CVT Transmission Cooler Kit
