The front one has arrived in 'Ricambio' packaging. I will try and get that fitted this afternoon.
I thought I had put the rear one in my basket to order subject to the quality of the front, but I must not have clicked on it. They have Punto boot ones, which I assumed were the same as the Coupe, but if they are not the same size then I wont order it just yet.
12.5cm x 2.5cm ones are the ones available on Amazon.
ETA: Coupe ones are 9cm x 2CM and currently out of stock on Amazon
Just noticed Amazon sell rear bump stops for the Coupe on Amazon too for a quarter of the price Fiat dealers had my pants down for!