I was told that if I put a custom tune on the car then I might be able to make them work. But the bottom line is that I sent to the injectors to Jim Wolf prior to tune, I do not have the ability or the time to custom tune the car to the injectors. If this is a known DW issue then they ought to specify it at the time of the purchase what is different and how to set up the ECU to compensate. The Nismo injectors dropped in and ran well, if you are marketing the DW as alternates I expect them to do the same.