just went through this myself
figured there is too many little things that coul break here and there i dont wana replace
but from what svtcanuck told me you dont need to touch the o rings or injectors
the UIM and LIM gaskets are reuseable, but are worth about 60$ Canadian for a new set
i didnt bother to go thru with it, seems like its going to cost to much in little problems to go along with it than its worth right now
