I agreed that pusher fans do very little to help your cooling. Unless you want the look don't waste the time and money. Lots of
oil coolers available from Backdraft, Finishline, Tony Branda and many others. Based on experience I think the best
oil thermostat is the Canton unit. Installing the Canton unit is some work due the piping required but they are well constructed and work great. The only thing I modified on my unit was the mounting bracket. I elected to use the Canton billet mounting bracket for the
oil thermostat. It works good and looks even better. Unfortunately, Canton stopped producing the billet mounting bracket for the oil thermostat so they have become hard to find. I just looked at Canton oil thermostat on eBay earlier today that included the billet bracket. If I was looking for one I would snap it up because you just can't find them anymore.