I know, why would I steer you wrong
Correct.
In fact, very correct.
Aaron, no need to have them use your stock radiator, I have a spare one sitting in my garage.
Or are you using Scott's old one?
Ryan, Race Radiators use a Griffin Racing core SEE HERE and is triple pass if I recall correctly.
The core is 42 or 48mm thick (can't remember) and I think Race Radiators use the same core for custom R33 radiators.
Their work is quite impressive and I had them put the OEM trans regulator in mine, but they normally use PWR in tank "coolers".
I needed to cut a little of the fibreglass support, but very, very little when compared to the Mishimoto unit!