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Mishimoto Subaru WRX/STi Performance Top-Mount Intercooler Kit
While examining our existing intercooler, our engineers felt that yet another improvement was necessary. The current core composition was working well for our tests but would likely run out of efficiency with a higher-boost/higher-temperature vehicle. To adjust for this we added more boost tubes, changed our fin type, and increased the density of the fins. Our original cooler featured straight fins; for this test we switched to an offset fin style. The offset fins provide a huge improvement in heat transfer. Check out the images below showing the change.