JWT sells a complete system that is guaranteed safe and it is 100hp shot. Ben says it'll easily get an SE-R with all the bolt-ons into the 12s. The safety is in the computer b/c it doesnt shoot until you push the gas pedal to the floor, which will then trip the NOS switch. The NOS will then continue spraying until you lift off the pedal or 300-500rpm (I think, cant remember) shy of the redline. The other safety factor is that it has its own daughterboard that is in conjuction with the main ECU and when the nitrous is activated, the ECU remaps according to the daughterboard which will richen the fuel, etc to prevent detonation. It sounds VERY nice!