Ok, i dont know if this has been posted before, but about 9 months ago, i was having cooling problems, and took my car to a shop. The stock radiator was crap, dirty as heck so the guy just replaced it with a new unit he had laying around for a small pickup truck, the stock radiator is 1/2 inch if im correct, he took it up to 3/4. it fits almost perfectly, at first it rattled a bit, but i drilled a hole in the plastic shroud edge and the top plastic part and zip tied it nice n tight, now my car never goes past the first quarter mark on the temp guage. Even in the dead hot of summer (well ok in traffic it goes up a tiny bit but not much!), i found this very helpful, thought you guys with Temp problems might wanna give it a try