trans cooler install- hose size?

ronstang94

Member
May 10, 2007
204
1
18
Phx, AZ
so the tranny cooler I got, is amazing :D. Almost as big as a hondas radiator. :rlaugh: (exagerating a little) with its own fan and a thermal switch. It has 1/2" NPTF openings. I see a lot of people use 3/8" hose. I know the hardlines coming from the tranny are pretty small, slightly smaller than 3/8" I think. Since the cooler is so high flow should I try to go a little bigger on the hose?