First of all it's VOTEX not VORTEX, and it's not OEM becuase it's UEM, Upgraded Equipment Manufacture. This should end the debate.
"Votex GmbH, a fully owned subsidiary of Volkswagen AG, is responsible for designing and distributing Audi/Volkswagen Genuine Accessories. All genuine accessories are created in close collaboration with designers to ensure that they suit the vehicle perfectly and stand out through their optimum fit, pure form and highest technical standards."
http://www.votex.de/
Basically to address your question, the guy's at the dealership were full of s!@$ cuz these kits are designed to fit perfectly. Removing the original Black Bits from the car gave the body shop guy's some trouble, but nothing serious.
:headbang: