How big of Intercooler piping?

[Forced Fed]

The reason I would like to use 2" piping is because the intercooler I intend on using is an upgrade for a Toyota MR2. It just happens to be about the same size as stock intercooler on the FST only a lot thicker.

It also has 2" inlet / outlets on the end tanks and even has tabs in the same spot for mounting the intercooler and retaining the stock fan on the back of the intercooler for cool down.