Kitcarbp has a fix for the overheating problems with the WCC design. I have yet to do the modifications on my baby.
Kitcarbp, please elaborate for us the problem and solution for the plumbing. Also, if you can tell us what temps you get from running your machine.
Do you honestly think that will make any appreciable difference on temperature control? Wheel wells? If anything, I would propose it would help direct the flow of air to the side vents.
Do you have hot air billowing from your fenders?
Thanks,
Xack