First and future mods for 370z

sirMike

So I'm looking for the first couple mods to apply to the Z, I'm new to being able to modify my car as my first two cars were a 97 Sebring when I was a teen to a Hyundai Santa Fe for the past 5 years.

The first three things I'm thinking of Intake, Exhaust, and Oil cooler.
I want to go with the Stillen Gen3 Long intakes as I'll be getting the best bang for my buck with these and have heard nothing but good reviews about them.

I'm stuck on what exhaust to get as there are so many options.
I don't want anything obnoxiously loud, but a kit that adds more volume and growl? I've looked at Magnaflow Street Series but I have a friend whos prefers Flowmaster and says Magnaflow has a drone to it. Another kit I'm looking at is the AAM 2.5" True Dual Exhaust. Any suggestions are welcome, but please state why you gave the suggestion i.e price, performance, easy install etc.
An oil cooler I heard may not be needed for a daily driver but I'm also hearing 200-215 oil temp isn't good for engine longevity. I was looking at Mishimoto and Stillen for oil coolers, again any suggestions are welcome, I'm all ears or eyes in this case.
Thanks everyone