"sinned system" is an it's always sunny in philadelphia reference so i have no idea what you're on about.

it's from season 16 episode 4, frank vs russia.

it's also mentioned in the non-canon iasip book they made as well that came out 8 years before the episode did. it's called 'the 7 secrets of awakening the highly effective four-hour giant, today'. the s.i.n.n.e.d. system is mentioned on pages 3-6 if my memory serves me correctly.

here's the scene from the episode just by itself lol
https://www.youtube.com/watch?v=CS5I44evH_I