I got the kit form nissan for free and installed for free. When I went to change to the thermostatic sandwich adapter I ran into the hose problem. Nissan did it *** backwards with their hoses so you won't be able to use them. What you need to do is contact z1 and order hoses and the mocal adapter plate from them. When you get the chance print out the installation directions and it will be self explanatory after that.