GTS Intake Tubes

Does anyone know if the original foam wrapped GTS intake tubes are available anywhere? Or, is there any shop out there that can refurbish the original one's?

I haven't found any for my GTS.  I used the aftermarket Mercedes tubes that 928sRus sell.  There are also tubes for the older 928s too. 

Thanks for this info. I guess it the next best option to the OEM.

It would be nice if the OEM version could be refurbished. I have my originals but they are starting to fall apart.

Check this post by Alan Moore (Phoenix area) regarding his replacement.   I have the Mercedes ones on my '95, and am considering Alan's approach: 
  928-electrics.com/Porsche/928%20Projects.htm
I think this is the source, although I haven't asked Alan for verification.    www.mcmaster.com/vacuum-hose/color~black...duct-hose-for-fumes/            
 

Thanks Gary. That looks like the exact hoses that I'm using now, but is the ones Alan has wrapped? If so, with what? Also, where are the ports sourced from and how are they attached to the tubes?