I would get the manifold also, alot easier to install while doing the turbo. You made a great choice on the turbo. My brother has the 62/12 on his 04.5 & runs it with II 3 flow injectors, TST/Triple Dog stack & egts are well in check. It spools faster than his stocker. He can get the egts up to 1550* at wot, but it cools down fast. He tows with the T-dog on performance & TST on 1/1 & no egt issues at all.