Intercooler hose recommendation

[Gene Caldwell]

There were some strange 'rushing air' noises coming from under the hood
yesterday after a boosted driving segment.  Fortunately I was within a
mile of being home.

The upper hose looks good (only about 3k miles of use), but I'm pretty
sure the lower intercooler hose has developed a leak, will know more
tonight after I get it removed.

Is this an Audi dealer-only part?  Or would I be better off going with
an aftermarket hose, and if so, any good source recommendations?  I'm
running an IA 3+ ECU so max positive boost can reach 21-22psi.

-Gene