OK.. I will some this up Bosch Worldwide/North America has 1 Spec 2 types: 1 Virgins (New never installed) No core required. 2 Gen-New Completely recondition BY Bosch Same spec As Virgins (Core required) I've been selling Gen-New and Virgins Side by side for 5 years (2009) when I was 1st able to Order Virgins, The morality rate is the same, I have never replace more then 1 injector under warranty (Per set), We have had warranty claims months after the sale, after Bosch inspected the injectors it was discovered either molested or contaminate.
The Only reason to BUY Virgins is to keep your Injectors if that's your desire, At times T&C will lower the cost on Virgins too add to our core Bank if the customer is willing to surrender their Injectors.
T&C considers any Injector that's dismantle and rebuild by any company other then Bosch to be house Reman or molested. Nozzle modding is OK by any qualified technician. There are many companies selling CR Injectors ,claims are erroneously use in the name of Profits, some of these terms are, factory New replacement, premium remans, Certified , etc.
Lots of Good Injector modding available today, Grocery selling is the area that needs (buyer beware)