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We dont need it.

I'm really not sure if what I'm saying is correct, so comeone please correct me if I'm worng...

I think that that thing is a crank case breather. I think some cars have a system where some of their intake air goes somewhere else for emissions control or something like that. So they'd want a breather so that the air is coming from elsewhere, and not their precious inducted air. Our cars use some funny system where the exhaust is actually fed back into the intake elbow, so you don't need a breather.

I really am confused about this too, so please don't assume that I'm correct. Does someone want to tell me if I'm right?
 
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