It works great, Its around $180 to get a used kit but $300 or so for a new one. The nozzle is screwed into the filter and sandwiched between 2 washers. With a dry kit it has to be before the maf, wet has to be after. With only a 50 shot the injectors will be fine, any bigger and it would be a good idea to throw in some plugs, tune and datalog it to see what % the inj duty cycle is at
So hows that dry nitrous 50 shot working out for you? I saw your install pic thread at f150online. It was about $180 altogether? Holds up well? Did you install the line before the filter in the intake tube or after the filter and before the MAF? And did you need new injectors or any other engine components?