hello i have a E36 318 whit supercharger
and i have ben reading about water/methanol injection but there is stil somthings i dont understang
on one site the says that it cools the engine and on another site the says that it gives more BHP which is it or is it both?????
and is it like NOS that i has to activate it every time i need to use it or is it just running alle the time ?????
and for last is it worth putting in my car?????