The process of compressing incoming air to create boost and power also has a nasty byproduct of heat.  Heated air lacks the density to make higher horsepower, increases detonation, and forces the ECU to pull timing.  All of which reduce the power you are looking to make.

With gargantuan cores, cast endtanks, high velocity tubing, and proper mounting supports, there simply isn’t a better choice for your car than the Perrin Front Mount Intercooler.  There intercoolers will support more than 1000 hp, and due to Perrin’s stringent quality control process, have less than ¼ psi drop across the core at 20 psi., improving throttle response and putting the boost where it belongs…  In the combustion chamber!

Fits:

02 – 07 WRX

04 – 07 STI