Basic question here. The coolers that I would like to use have AN fittings on them. My questions is which size would I use in order to have the stock 3/8 line fit with a barbed conversion fitting? I hope that makes sense. I am in no way an expert in the ways of AN fittings...

 

try this
http://www.gre6.com/ansize

 

You want to go all -6an for trans cooling on these cars, the i.d. of the stock fittings match up perfect to the i.d. of a -6an.

Here's a thread I made about it last year.

https://www.clublexus.com/forums/per...ded-lines.html

 

ALSO OP if u had searched this is a sticky

https://www.clublexus.com/forums/per...r-the-2gs.html

i STILL havent installed this yet but after my headers this weekend its my next project

 

Thanks, guys. All questions answered!

 

^good but next time please search. 99.9% of all things u need to know are on here