I had to have an oil cooler to go home on a warm day.
I hated the drone of the exhaust after 30 minutes.
It sounded like I was riding on balloons so I changed out the tires.
The coil overs and sway bars are just to get a bit more out a fine car. I got a better ride while still getting handling gains.
The intakes were just for wasting gas as I like the sound coupled with the CBE.
The brake fluid upgrade was simply because I didn't like the way the pedal went all the way to the floor then pump up.
I'm still working on a brake upgrade, we will soon have a report.
Thanks for asking.