did you get the R intake manifold with your head? If not then just buy an ITR I/M...it's a little cheaper then the skunk2 and is the same thing. The header will fit your new head but I'm not a big fan of the neuspeed headers. The AEM CAI for the ls will fit the ITR I/M but the diameter of the piping is different...I believe the LS AEM CAI has 2.5" piping and the ITR AEM CAI has 3" piping...I have the GSR AEM CAI, 2.75" piping.
The reason the AEM CAI for ITR has bigger piping is because the R has a bigger throtle body....I hope you have the R throtle body...
you shouldn't have bought an ITR head...the B16A head is pretty much identical to the R(not to mention it costs a lot less) head and all of the internal components would have fit on that...all it needs is a p/p and it's pretty much an R head
