We have been using these Deatschwerks injectors for several years in the VQ35 applications. We also have known for a while that they are also a drop-in replacement for the VQ35HR and VQ37VHR as well. I was actually the one to suggest to Mike Deatsch that he should spell it out on his website that the same injectors work for all of those engines
Only the 600cc and 800cc injectors will be relevant for those 370Z/G37 owners going with popular FI kits. We have found them to be very easily tuned on the VQ platform with appropriate engine management. In many cases, customers have run out of injector while on our dyno, had a new set of Deatschwerks injectors dropped in, and been re-tuned for the new fuel supply all within the standard allotment for tuning time!