Best / First track mods?

[Jriley9922]

2002 boxster base.
Have track brakes and tires on the car... it's being turned into a 24hr lemons car.

just for the record... I am not ruining a good car here :0 ... salvage auction car that someone took a baseball bat and a knife to pretty much the entire interior and exterior... and it wouldn't start, so it was dirt cheap.

Mechanically, I've sorted what it needs... and it did great at the first track day in summer heat.
So now I'm onto the cage... and while I'm here, what are the common things track folks do on these cars?
Definitely interested in any cooling solutions... even though the stock system did fine on track... if there are any common 'tricks' to improve that?
It's a lemons car, so at least for now mainly looking at DIY type of stuff... ducting, re-routing air, etc... i have no issues cutting stuff up and making ducts/flaps.

anyone done a generic universal $100 oil cooler from Amazon? We put one on our other lemons car and it works great, but it's a Ford... i know very little about boxsters... but I'm sure i'll be finding out a bunch here, hopefully not sooner than later.