Originally Posted by SouthArk370Z

Well, I figured that info would be in the FSM but all it calls for is "vinyl tubing" (I think they meant PVC). As cheap as the stuff is (you can find it in most hardware, hobby, pet (fish) stores for a few bucks for a 5-10 ft roll), just buy 2-3 different IDs and see which works best. 1/4" or 3/8" ID will probably do the trick but I've never bled the brakes on a 370Z.