S4 without Z rated tires

[Scott 20191668 Bermes <scottb2460@earthlink.net>]

Even though I have a lot of life left on my current set of Yoko's when I
was at NTB/NTW today looking at prices on 225/50/16 Z rated tires, 
needless to say had sticker shock.  

OK, so I'll ask, but please no flames!!!  Is it possible to put H rated
rubber on the S4? I know, don't even ask me why, but I am more
interested in knowing if it's possible. I am sure I'll go with V or Z on
my next set, and search like hell to get a good price on them, but at
the risk of incurring the wrath of the Audi Gods or fellow S4 owners, am
curious about H tires on the S4.

Scott
92 S4