As the downpipe came with a big dent into it, I decided to cut it out and weld a new piece in. The dent caused a restricting from the normal 76mm back to 60mm!!
Yes I know, a smaller dent retained because its position was in de curve so was harder to get nice fixed. And it wont restricted the exhaust.
Also had some lambda bosses weld in
So now I can continue with polishing!!