S15 turbo....idea?

[awd-drifter]

I have my cousin's sr20det and now i have the turbo bolted onto the exhaust manifold. Right now, it's just sitting in my garage.
Question#1 : Can i put this turbo kit into any other car without customizing a the exhaust manifold? On the s15 turbo, it says Garett 60A/R and a tiny small number i think. I know there's a few oil lines here and there, but just for the hell of it, can i put this turbo kit into any other car? Hmm...just wondering, my brothers and i are still thinking about selling the turbo kit with a Greddy 2'5 w/3"muffler full exhaust system, but not sure yet.
Question #2 : there's a bolt in between the turbo and the turbo exhaust and printed on it says W T (i was guessing water temp?) and a number but when i took out that line connected to the engine, there was some kinda liquid coming out of it. Is it safe to take that bolt out?
I'm at school right now and will check later, thanks!