I have a Team Dynamics chart at home from an Audi Supplier, I will have to check when I get home. Sorry I am at work. You could call them 909-947-0114. They could answer your question.
I myself have looked at 17" Monzas weight in my catalog is 17 pds each! thats about five lighter then stock. Called Team Dynamics they said just under 20 pds each. So maybe my catalog is off! Look at rubber choices 16" has the best prices KDWs etc moving to 17" I like the SP-9000 dunlop about $140 each to go 18" costs a lot more.