Racer X Intercooler Design Overview We set out to offer plug-and-play intercooler option that requires no tuning, no cutting, and no permanent modifications to your vehicle when designing the Racer X intercooler for the GR Corolla. With this goal in mind, we opted for a Garrett core that is larger than OEM, but still fits within the OEM location. The Garrett core that we selected is 0.6" taller and 0.34" thicker than the OEM core. With this increase in heat transfer area, we have seen a...