These are available on E-bay, the ones for the Raptor work perfectly.

Aluminum Inline Cooler

 

what do they do? I have never seen this before

 

They replace a section of your radiator hose and are finned which allows air to cool the coolant as it moves through it. Supposed to reduce water temperatures by a few degrees.

 

KevinM,

That looks better than the Pro Design Cooler that I have already. I will have to look for one of those! Thanks.

You may want to relocate it in your collant line so it is on the line that enters the top of the radiator. I have a Prairie which I mounted it in the line between the thermostat and radiator. this is where both hot collant lines from the heads flow towards the raditor. This way it cools the temp. even before the radiator which will make the radiator even cool more efficently. That is where Pro Design told me to mount it and it seems to make sense.

Good Luck