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Mishimoto’s direct-fit top-mount intercooler for 2008–2014 Subaru WRX STI uses cast-aluminum end tanks TIG-welded to a dense bar-and-plate core with a 3.75-inch thickness and 584 in3 volume. Engineered to lower intake temperatures for stock and modified cars up to roughly 400 whp, testing showed a 10°F drop and modest bolt-on gains, and the kit includes gaskets and silicone couplers for straightforward installation.
Mishimoto Subaru 08-15 WRX STi Top-Mount Intercooler Kit - Powder Coated Black & Black Hoses
