Oil lines. I like using SS line for things that get hot and move like catch can, oil, and water if I can afford -20 blang blang. Since I can't afford $60 -20 fittings, I'm going to do hard lines for the radiator/reroute and use silicone couplers at the joints.

SS lines are my choice because I don't have to worry about them breaking, coming loose, or melting, especially when wrapped in "flameguard".

I did not do my water lines. I made my awesome, but not water line AN awesome..

AN water lines at the turbo are a godsend if you ever remove it often.

I have them. They were kind of a pain in the cock to "clock" correctly.