Questions about the PI intake

Ok guys i'm pretty sure my intake is now trash so I need to replace it. I have three questions.

1. Can someone show me what the aluminum crossover refers to? I don't know if i already have it on my car and i'd like to know what i'm looking at.

2. Does anyone know how much a new aluminum crossover intake would be? I don't really want to spend a lot of money, but i don't know if used parts are worth the hassle.

3. Anyone have a good write-up of an intake install with some pics?

Thanks in advance guys!
 
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