You have the stages correct but the warranty does change. I've been round and round with Ford and Roush about this. is it stupid? Yes. Would I have still purchased my car if I knew this beforehand? Yes.
2013 RS1, 1 of 1 Grabber Blue w/pearl, 6M. Brembo package, Roush Performance suspension upgrade. Roush Performance exhaust. Roush Phase 1 TVS.