Those of you who ordered the 'uprated' festoon bright white bulbs from EM Tuning should check your housings. The ones I received were rated 10W which at the time I did not realise were far higher than the 5W OEM rating (Homer moment but I was trusting the supplier). Anyway after one bulb blew within a couple of months I went to change back to the OEM units and found this ...
This is only my experience with these bulbs on a 2011 A3 so I cannot comment on the product as a whole. EM Tuning did offer to replace the housings. Anyway just a warning for those who deviate from the OEM products - you take your chances.