Nitrous is no different than any other power adder. Too much gas = BOOM!!
Too much boost = BOOM!!. It all depends on the tuning, and the strength of the engine internals. I for one have had no problems with my nitrous kit, as many have had no problems with turbos. I also know that the 2.0 FS...
I have been runniing an 85 shot on my mp3 now that I got 3 in exhaust and an AWR header, I ran a 75 shot for a year with no problems. But i'm using a fogger with the fuel jet a little rich