XLT2003

I have been looking into giving my 2003 xlt 4.6L somewhat of a boost. I have a newer motor than my model year suggests. its a 2V 4.6 but from the model year 2006 with about 70k miles on it. I was researching low boost and came across the zex safe shot. Has anyone else out there seen this? I'm looking for a wise mechanics opinion on doing this to my truck. I have a superchips flashpaq tuner and the gotts mod installed. I am currently running performance tune. The zex safe shot system uses a dry delivery from a 5lb bottle. any thoughts or warnings? advice is much appreciated seeing as I have never used nos before.