Mattback: i thought you would know this? And i didn't post this to get a retoracle(sp) remark about why i should get an injector from a different car. To reply to your imput--as to why.
Well, why would i want to buy injectors from a ragged out sr or 300 when i could possibly find the same injectors from the Q which is more often than not going to be a well maintained motor having very little abuse to it. Secondly, the in all likelyness the Q45 injectors will be cheaper. It comes down to peace of mind and cost.
Jeff240sx: Are "ALL" the nissan and infiniti part numbers interchangable?