Pairing A/C Heat Exchanger with Radiator Cooling Stack

[HoveringHMMWV]

How functional are these aftermarket A/C heat exchangers when paired to the top of the cooling stack? Thsese HMMMV's run warm as it is, let alone with another flow restriction sitting atop the radiator. I have read great things about the Red Dots but that's with their heat exchangers mounted in the bed or up high. I would like to hear from those who have installed such a unit under the hood.
- HoveringHMMWV

 

[Coug]

If you're just doing basic driving and off roading I don't see it being a major issue, but if you drive it like it was meant to be driven, well, it's under the fenders in the newer series trucks for a reason.