I think the above post by stitch is referencing the "cam chain tensioner pads". These should be inspected and replaced as those will wear and break, causing non-repairable damage to the cylinder head. It will basically cause the tensioner to be ripped from its mounts after the pads break. A $200 part which can save you from having to replace a $2000 head (not to mention labor to install)
Another thing I see in your photos is that you still appear to be running OEM fuel lines. These should also be replaced as many 944's have been destroyed by engine fires. Because the lines run directly over the exhaust manifold, after the years these cars have on them the lines get dry and brittle due to the heat, eventually causing a fuel leak. There are also lines on the fuel rail running to and from the dampener which also need to be replaced. You can either get new OEM lines ($$$) or go with AN adapted lines, as many of us have, sold by many different suppliers (cheaper yet still effective).
Highly recommend doing both as soon as possible. Im actually surprised your shop did not bring this up as these are both very well known failure points...
Photos of new fuel lines (I have since added high temp titanium sheathing to the ones running over the exhaust)
And here is a photo of what happens with a chain tensioner pad failure:
