are these holes threaded (in gray rectangle, wouldn't let me do red) on our trannies particulary a 03 TL-S, might be able to convert to a normal tranny cooler easier

 

to this from an odyssey

 

time for a bump...

 

? im assuming they are using the same holes that our trans warmer uses? but its VERY easy to add a tranny cooler to our cars using the existing plumbing.

 

yes they would be the same holes ( the return one be no problem to tap if needed cause you just take off the filter and clean it out but the supply one would put shavings all down into the tranny) so it be best if they were threaded from the factory

and ours cars are very easy to add a tranny cooler to the existing plumbing but the rounting of the new lines to the front from the back is a mother F***ing pain in the ass with making sure they don't rub

those "new" lines from the odyssey would put the connection points right up front, so there be less hose/plumbing
BTW: i did just add an external tranny cooler last week

 

I had no issues running the hoses so that they didnt rub, Plus the time taken to take off the warmer, plug the lines, install the new tubes you could have installed a cooler 3 or 4 times.

 

where you run your lines??? and hook in???
i did around the side (towards rear and underneth was too close to the axle for my comfort) and hooked into the return line after it tee's for the 2nd gear cooler jet