Will the intercooler you choose effectively and efficiently do what you need it to for your application? Many variables need to be analyzed for you to find the answer. If it does what you NEED, then decide what you want.
... Yes the PW would be fine with the 20gXTR
A majority of quality intercoolers available are capable of what most applications need. Aside from the lengthy discussion that is TMICvsFMIC... Choose the one you like best