Flexpart for the downpipes

[prosty]

Hi

My downpipes flex sections have finally given up and I have a small leak on each downpipe, I'm not looking for more power than I already have, so I just thought I could get 2 flexparts and then just cut the old ones out and weld the new ones to the downpipe, any suggestions if this is a good or bad idea, and where I can get those flexparts? I don't have a supplier in Sweden that can provide such a short flexpart.