i might be retarded but cant figure out what this is...



im talking about the "tube" type thing behind it

PCV hose? Im not an LD9 guy.



Tinkles

2003 Cavalier 1SV
Bagged and Blown

If you are talking the hose directly behind with a brass looking fitting coming out of it, it is the PCV hose coming from the separator on the block. Should hook up to the back side of the intake that goes over the throttle body.



2010 Subaru Impreza WRX Limited
1999 Cavalier Z24 Supercharged
1999 Grand AM SE (Beater Car)
1997 GMC Sierra
2007 Honda CBR 600RR
2005 Honda TRX450R

Ah yes I totally forgot about that, I just looked at my AEM and it makes sense now, thanks