Just wondering if this is supposed to be unconnected ?
I took off the Pressure Chamber that sits just behind the Intercooler piping to get a look under the manifold and I found this unconnected valve.

See pics
Please let me know where this valve connects too,

 

Unless your car is an automatic, nothing should be connected there.

 

Right. Follow that hard pipe and you should find nothing on the other end of it either.

Dave

 

Yup both of these guys are correct its not used.

 

theres a bunch of un-connected lines if you take the UIM off also.