yea the DET is pretty fast out of the box, and with more boost, intercooling, bolt ons it will be even faster. if you want speed get a RWD 240sx and swap a DET into it.
if u want show/style/handling, and decent quickness, go with the lude.
as far as a wrx goes, you will get roasted in your h23a1 lude.
i hang with wrx's and beat some of them, but that is highway or 20/40 punch only, not from a dead stop...i am even in WHP and weight with them.
~kris