The CP4 works hard under that hood, help it out and cool it down with the "Make Sense Block".

The 6. 7L is one of the only diesels made that routes the fuel line labeled "Return Line " right back into the fuel filter. Which gets ingested into the fuel system, like a loop. Which means all of the hot aerated fuel never has a chance to chill.

Installing the "Make Sense Block" ditches the hot aerated fuel back to the tank and gives it a chance to chill before it has to go back to work again. 

The "Make Sense Block" is designed for a quick, do it yourself install. While delivering durable solutions.