i would be asking sk, but i dont think the setup is quite as simple as how you have stated.
I dont mean to be rude, but there is a bit more to it than that, i did fit one to my old car without doing any blocking of the pipes by running hose here there and every where but in the end i took it off as it was more of a pain than anything.
Sorry to be sounding negative and i hope i am wrong as i would like to fit one myself, but from my understanding it wasnt quite as simple as that.
Simon