Hope you got the aftermarket tapered and longer bolts from them along with seat...If not, order them as this seat is a royal "PITA" to install using the stock seat bolts!!!...Otherwise it is a great seat for me...Ride safe
I have had mine for over a year and 14000 miles including two 1100 mile days. Love the seat and it is really holding up well. Feels so good to bury my lower back into the seat. Makes it soooo comfortable. Enjoy your new Mustang.