Yeah I feel you. The '15 Hellcats superchargers had some sort of rivet issue I think or was it a gasket I forget but they ironed out all the issues by the time the '16s started rolling out.
nawghtyhare
is almost @ 100k with his Scat & he's only had that 1 issue with his active exhaust once that I can rmbr of during ownership so they're def reliable. Challenger or Mustang...you can't go wrong with either. I love Mustangs modern designs. If Challengers didn't exist I'd be in a some sort of black V8 Mustang right now