Grate on the exhaust hood

Hello, today I picked up my new used Leon. What I noticed already during the visit, on the exhaust blinds is rust. Otherwise the car has no rust only on the two tailpipes. I thought that I took care of it myself and hope someone has a good tip for me. It is not bad but s****** looks. Change my idea blind, however, because it is not how elaborate that is. I can not weld. Eventuel the old from and a new one with bells. or polish the stainless steel / loop in the hope that you can get rid of it. Vllt someone had the same problem and knows remedy. Would be very grateful. Mfg Basti