How loud is the for2 Diesel

Hello I would like to change from my great Fiesta 1.8 D Bj. 91 to the for2 cdi and I would like to know how loud this part is. I already sat in the petrol truck and at the start I got a shock but then the passage was inserted everything has settled down again. Now I wonder what this looks like with the diesel. My maximum speed on AUtobahnen is 130 but 100 is standard and I have to work 30 km daily on the car train. How are the costs, I heard that the inspection ion vom Cdi is supposed to be quite expensive. Will buy me a used one on what to pay special attention to from 2000 on. Thanks to you. PS : My Fiesta was on the track equivalent to a jet hunter in volume and acceleration 😉