Process West Intercooler Kit Top Mount Fits Forester XT OEM Scoop 04-07 (Black)

Process West's goal when developing their new top mounted intercooler was to make it the very best aftermarket top mounted intercooler for WRX/STi. Studying their competitors, they fixed some glaring errors they saw.

The most obvious error that EVERY one of their competitors makes is not supplying their intercooler with proper ducting/shrouding to suit the increased size of the new intercooler. There is no point in installing a larger intercooler and leaving the factory under bonnet splitter/shroud in place. Here is the solution. A properly sized splitter/shroud to suit the application.

The next major problem that we see competitors doing (and they all copy each other) is building an intercooler that is too thick. Their design criteria is spot on for bragging rights whilst marketing. They say that bigger is better. This is totally not the case with an intercooler that is mounted at 90 degrees to the ambient air flow.

For good heat exchange to take place you need good ambient airflow through the intercooler. In the case of the boxer engine with its intercooler mounted under a bonnet scoop the ambient airflow speed is already struggling after doing a 90 degree turn through the scoop. The last thing it now needs to do is find its way through 114mm (4.5in) of intercooler core. This will result poor heat exchange and high inlet temps.

Our intercooler is 90mm thick (3.5in) and in turn the intercooler breathes, gives lower outlets temps and in turn more power.

Almost all of the aftermarket Y-pipes we see do not distribute the charge air flow along the intercooler evenly. Their Y-pipe usually consists of one nicely flowing section with an afterthough spout as the second duct.

SPECIFICATIONS
Intercooler Core Size: 490 x 193 x 90mm
Mounting Position: Top
Finish: Powder-coat (black)