Alright, I got my new downpipe tacked together and ready for a full weld job. I have to weld in the O2 sensor bungs too, along with a tube for the dump on my wastegate.
Now my question, my turbo flange is NOT flat at all, and it seems that nobody makes a gasket for it.
Is it common practice to have the mounting surface machined flat after welding etc.... There is no way this won't leak without it.
Thanks - Evan