Neo coilpacks/loom will work with S2 and vice versa, the Neo coilpacks bolt up to the S2 25 with only one bolt though cus they're different in that regard.
Reminds me of one time I was parked in campbellfield, kid opened their door and smacked it into mine while me and the missus were both sitting in the car with the windows down.
I cut the grille bits off mine leaving the top section that hides the bolts. The grilles look like anus tbh.
Dunno if I posted this one here, I hope not. It's hard to get new photos when it just sits there.
Great write up, from what you're saying about brakes sounds like GTR Brembos into a gtst should be fine but a car like mine for instance would need to be engineered because I don't have ABS and the Brembos are designed for cars which do?