The problem with this route is that you will have to do a fair bit of plumbing and re-engineering as the Garrett units are not a straight replacement for the KKK units.
Downpipe and a manifold. A decent exhaust fabricator should be able to manage this.
Its not exactly rocket science. We've made bespoke manifolds before.
A really easy way to do a manifold is get hold of a couple of knackered KKK cores, cut the turbo itself off the manifold, have a garrett flange TIG welded onto this, job done.
I reckon its about time everyone in audi tuning stopped following like sheep and did something different [img]images/graemlins/smile.gif[/img]