clinton;36483 wroteI will have to measure it, I am not sure. But it appears to be identical to the DO88 unit if that helps.
Interesting.
Sounds a bit like how the 'Worley' and other chinese ebay intercoolers appear to be exactly the same product as are available via one of the common US brands.
Looking at both, on the floor, side by side, I'd swear they were the same part.