My Z was turnkey. Came with the NOS and the 555 injectors along with the HKS larger intercoolers, HKS boost controller, JWT ECU and pop charger as well as the JWT NOS. The previous owner did a very nice job with selecting what mods. I have no complaints. I would advise you not use NOS in a street application for many reasons. Safety being only one. If you were to street race a Cobra and he is handing your ass back to you on a stick, you might feel inclined to keep the NOS on and cause damage. The JWT system I have cuts off at 7psi and is ECU controlled. I have no manual override to keep the NOS on.
