First off I wanted to give a big THANK YOU to Theiceman, old guy, Spawne32 and everyone else that helped build this knowledge base for timing chains!
I am happy to say my chains are replaced. In the end I purchased the Rein Automotive kit (P/N: CKS0229) from Rockauto.com. It came really complete with both chains, all guides, timing & balance chain tensioners, upper & lower covers, crankshaft bolt, and sealant. I just needed to purchase the oil chain tensioner and other hardware from my local VW dealer since they were MUCH cheaper than the Audi dealer. The Rein kit was $400, VW parts were $100 and about $50 in tools for a total of ~$550.... MUCH better than any shop or dealer in the area.
Here are before and after pictures of the chains & guides.
Old.jpgNew.jpg
As mentioned my car was a 2014 which should have had the updated guides but didn't. When I got the "proper" kit and the guides didn't match I was nervous but decided to tear it opened and compare. In the end I installed the updated guides and everything when well. At first I was a little disappointed when I first checked the adaptation since it was 1.17 at idle, and it took be a second to realize it was a +1.17 vs my -6.11. After warming it up and a short spirited drive the value was a respectable -0.64. I can't believe how much better the engine sounds and runs!
after warm up.jpg
So now for the new vs old guides. Personally I don't understand why Audi & VW are still selling the old guides. I did break the top guide pulling it off but super glued it so I could better compare them. First the long right guide, to me the new guide just has extensions to help prevent chain skip but otherwise they are exactly the same. See the compare pictures.
Right-1.jpgRight-2.jpgRight-3.jpg
The top guide was a little harder to compare but it too looked like it just had extensions to prevent chain skip. The new top guide was a little wider, had a deeper lip on the front edge and no lip on the rear edge, but otherwise seemed to me like a direct replacement with better chain skip prevention. See the compare pictures.
Top-4.jpgTop-3.jpgTop-2.jpgTop-1.jpg
Hope these pictures can help others. I could be wrong but to me it looks like the guides are exactly the same in the critical parameters and the new guides only add extensions to prevent chain skip. BUT the question still exists, if that is the case why would Audi & VW keep both part numbers rather than just supersede them?
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