Contacted Alpine today and was told the aluminum block is out of stock. However he did have some good news for me. Apparently the newer model S/Cers dont have the piping at all, Alpine has done away with it and just eliminate the EGR. He told me to just cap both ends of the piping, plug the egr electrical back in and tie the EGR up somewhere out of the way. I guess it has to stay plugged in to keep the comp happy. Anyway, I'll be testing this over the next few days and keeping track of gas mileage changes.