The car I'm building started as a shell, so I can't tell what it had before. What exactly are the differences between the Showa and Denso radiator models?

I know I want another aluminum style, I had a Fluidyne in my last Integra and it was much more efficient than OEM. Any reason I should go for Koyo this time? I read on one site that the Koyo is a few MM thicker than the Fluidyne, but found nothing supporting that claim.

 

Anyone?

 

Last attempt at bumping this...

If somebody could just list the differences between the Show and Denso models, that would be great. Thanks!

 

I just purchased a Koyo rad (showa). The Rad i had on my integra was denso.

I too looked for the difference and from my experience, this is what I found:

Radiator cap different (need to buy an accord cap)
passenger's fan mounting points are different, need to replace with slim fan.

Beyond that, the fan sits directly without an issue.

Hope this helps!