Please do keep us updated. I was planning on buying this up until I read this for my '19.What?! Oh man. I guess that means when I receive my muffler, it will need to be welded instead of clamps. I'll keep you guys posted. I'll probably go buy a caliper after work to measure my pipe diameter. Thats just super strange to me that they would change the exhaust piping for 1 year. You'd think they would have done that with the facelift to MK7.5.