i'm in the process of fitting my silicone hoses to replace all bar the lower metal centre pipe...
basically Awesome provided me with a SAMCO one piece top pipe from SMIC to inlet and lower 90 degree bend on the lower section of the SMIC, plus I got SFS to send me a compatible turbo outlet pipe.
all will be fitted next week when i get my new o-rings
this is most probably the closest you can get to a "boost pipe kit" for the mk4 TDi 130PD's