In 2013, when my Fiat 500 1.4 Sport was five years old, I replaced the shock absorbers with Koni FSD’s hoping to improve the ride comfort which I found a bit stiff with the 16” wheels. A couple of years ago I had to replace the fronts as rust caused the top seal to pop out and yesterday, when replacing a rumbling rear wheel bearing, I found that the rear shocks are rusting really badly too!