what do you mean by stage 1?
An oil cooler would be nice for any car. That one has two inlets and outlets one of each for your engine and one for the tranny. looks okay but i've seen better, reason i say that is because the engine oil capacity seems kinda small. probably won't be as good as a conventional stacked oil cooler would. be prepared though, making an oil cooler setup is really expensive. a moderate setup could cost around $200-250.
also some other drawbacks:
-need to add more oil
-chances of oil leak, loss of oil pressure