No expert on this subject, but there have been many threads asking similar, and quite a few have had problems when upgrading. The general concensus has been that the standard ones work perfectly, just change them every 20k on a tuned car.
RRThe plugs i listed are the latest ones. I got them from TPS about 3-4 weeks ago. They are the same for all 2.0 TFSi engines.The OEM ones are Bosch not NGK and are longlife plugs
My guess is that 2 companies make viable plugs for the VW group.