[NiftySVX]

Often, the flow through the cooler circuit is the problem and the overheating of the fluid is the symptom.

The stock cooler in the radiator is the subject of a long debate. Is it restrictive? Yes. How restrictive? It depends on if it is an original 92 radiator that came with the screen heat exchanger. It also depends on how you define "restrictive". In my opinion, it is too restrictive and is a risk not worth taking. However, some of the aftermarket coolers are just as restrictive if not more so.

Providing that your radiator cooler is not restricted AND the lower part of the radiator is cleaned on the outside you do not need an additional cooler for a stock setup. If you are going to an aftermarket cooler, you would do best to make an improvement in flow through the cooling circuit to make sure that there is as much possible fluid flowing through it and that there is no blockage. That way there is an improvement in cooling and in fluid flow. Take your new cooler and blow through it with your mouth. If it feels like you're blowing through a straw you're gonna do more harm than good.