ETS Intercooler Core - Subaru Legacy GT 2005-2009The key component to any good intercooler kit is the intercooler core itself. All of our intercoolers use the same record setting core used in all the ETS race cars. It utilizes an unrivaled internal fin pack with its extremely efficient design (made exclusively for Extreme Turbo Systems). You can buy with confidence when buying the ETS intercoolers. You're getting the highest quality parts available for your car.