Yes, if you have the adapter it should bolt right up.
Greddy has a downpipe for the TD06 20g that is a stock replacement i.e. bolts to the stock exhaust. You may be able to source somewhere... but I have no idea where.
You can't just use "an aftermarket" downpipe, per say, as those have the flange for the CT26 turbo. I don't have a good pic, but here is a wrapped one for the td06:
GL!