I have the GoDan, which is sold at Autozone, Pepboys and other places as the "maximum cooling" option. It is just like the factory unit but more than twice as thick. I went right in no problem when I had A/C and the stock clutch-fan and shrowd. The only thing I had to do is remove the rubber from the mounts, no big deal, it fits tight so no rattles or anything. My car runs the same temp all year around and in all driving conditions.