I run the ATE in my car and am perfectly satisfied with it. I used to run the Wilwood EXP 600+ but switched to the ATE because of the cost. The 600+ costs over twice what the ATE does.
Just looking at the specs, the Wilwood 570 has a higher dry boiling point than the ATE, but the ATE has a higher wet boiling point. I'm not sure there is enough difference between the two to really matter. For me it boiled down to availability.
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