I'd like to know how to replace the intake monifold gasket on my 2001 nissan altima, I've heard someone saying that one doesn't need to take the head out but I've heard people saying that you do, and I know this is two pieces, so I'd like to know if I have to take out in two pieces or if it has to be in one piece?
If you know about it please let me know.
Thanks.

