Down pipe for Suby conversion

[Sandeep]

I'm actually only using the stock TD04L-13T WRX turbo on my T4, but my question has to do with making a custom downpipe.

I want to use 3" tubing and a 1/2" thick steel flange but it looks like the stock downpipe was 2" dia ?

A 3" dia pipe does not look like it will fit on the flange. How did you guys handle this and what did you do about the wastegate gasses ? Bell Mouth or divorced wastegate ?

Thanks for any insight.

Sandeep