So, my brother has a '91 Coupe Quattro that his mekkakneck told him may need injectors. I've heard that this is a common problem and the replacement doesn't look like it would be any more difficult than a VW. So, I agreed to do this for him rather than have hime pay labor he was qouted.

Why are these so expensive and are there any aftermarket replacements available??

not bad, I didn't know replacements existed

Thanks, Jaime... Dave initially suggested that I ask you directly anyway. These guys are right across the bay too.