Mentioned here so many times is the infamaous tick sound coming from the front end,affected only the 13 SHO PP ,by replacing the wheel hubs and the TSB washers,if you hear any noise try to have them order the parts in advance and do everything in one shot,did mine about a month ago and since perfprmed the hubs and washers car feels amazing,hope this helps and good luck with the ride,also the rear license frame assembly recall.