what sort of piping?
The trust kit for R32 TD06 20G L2 will incude, turbo, manifold, dump/front pipe, wastegate, intercooler piping (for stock plenums) oil lines, block off's for water lines etc etc etc.......
As far as purchase goes, there are quite a few retailers / workshops that can get the kit for you.
Im personally going to see how I go with the 8cm rear and if need be get a 10cm housing later on