Thats a good idea Jaje, I would definitaley rework the head, like you said you never know where its been. Especially if its JDM.

I still thinks its a pretty good deal for $300-500.

But if you shop around especially on ebay i'm sure you could get all that stuff for wayyyyy less. There was a guy selling an Si manifold for only 20 bones, and that injector thing like you were talking about for $5. You can get an ecu pretty cheap too, and find injectors anywhere.