Flanges? There complete, I think the only thing thats missing from OE is the little connector tubes between tubes 1 + 2, 3 + 4. They did hole in the usual place but i had this ground back and welded, performed perfectly after. The only reason I changed them was because Delkavic were doing a deal on new ones, and I had the spare cash. I'll dig them out tomorrow and take some pics so you can have a look mate.