Whats the compatibility of the APR chips for different model Audis but the same 2.7T? There's a guy near me selling an APR chip from a 2000 A6 2.7T and I wanted to know if there's any chance it would work for an 01 S4 Tiptronic. Not sure if he's was a manual or auto though. Thanks!

 

from 2000-2002, each year had a different box letter. Also if it was manual or Tip played a role on the box letter.