[Official] "Which intake should I buy for my Z?" thread.
The consensus is the stillen gen 3 for horsepower gains. Not too sure about the oil cooler as I don't have it,but I'm sure who ever designed it put it in a place so as not to interfere with any other bolt ons. I posted a thread above,but judging by you posting in the right section,you might have read it. There is a search bar up top though,that might yield you a better result on what your looking for.