[vasillalov]

Brian,

You can take them to a metal working shop and have them shave 2mm off the flange so that it sits flush on a flat surface. No big deal at all.

Also, make sure you get brand new sealing gaskets for the turbo flanges. Most people do not replace them when they switch downpipes and in the majority of the cases it works fine. I did not want to take the risk, so I bought new ones for $16.00. It helps me sleep better at night knowing that they are not leaking exhaust gases.