I now have two opinions, each 180 degrees apart.

First is that the 5.4 in my truck makes most horspower at 190-200 degrees.

Second is that it makes more horses lower.

I know for a fact my truck runs MUCH stronger when the engine is not a full operating temp.

I also know that a number of people are installing fans to cool the compartment more.

So, what's the deal? Do it or not? I have an Air Force 1 FIPK and and true duals. No chip. Everything else stock.

If I add a chip, would it matter?