Audi lists three exhaust clamps (55, 60, and 65mm ID)...
 

which do I need for the clamp after they Y-pipe, before first muffler, on the quattro exhaust system. Thanks.

ETKA shows 893 253 139 B - dual clip - 60mm for the connection between...
 

...the middle muffler and y-pipe.

Thanks. My euro etka shows three different ones.

I saw that -- US ETKA only lists the 60MM clamp... :o) [edit]
 

...one advantage to having both, the US version for US/Canadian-specific parts, and Euro for everything else (I don't know if Canada has a seperate version).

"US" version covers all of N.A.
 

I gotta find my NA CD... gotta be here somewhere.

Aren't there some Canadian-specific parts? Like non-airbag wheels till '93?
 

AFAIK all Audis in my US copy have airbags from somewhere in '90 and on.

Nah... not enough to make a different parts catalog...
 

Always a few exceptions. Parts in my NA Etka sometimes have a 'canada' part note.

Hmm...I wonder if it's in my version...I'm sure it's there but I never paid attention...interesting.