We have a thermo valve in the adapter plate so our kit doesn't overcool the oil on the street.Looks like a 13 row cooler, would be well sized for the street. Depends on the climate where you drive. I use a 19 row cooler that is blocked off while on the street as it over cools in an area thats around 35*C (about 95*F). But on the track it does well.
I have also used the factory oil cooler and it did nothing for me. Don't know how different it is to the TRD version, but looks identical.
I have an Earl's inline thermostat and have checked that it is working. I am happy with mine, but unless people are driving only at the track (somewhere hot) then 13 row will do the job just fine.We have a thermo valve in the adapter plate so our kit doesn't overcool the oil on the street.