I ordered my TCR muffler from euro-parts.co.uk a few weeks back. I picked and paid for priority shipping (4day delivery) but they sent it by standard which took around 2 weeks or so. I had to demand a refund for the difference in postage which was €20 in the difference. It arrived without the box and was just wrapped in bubble wrap.
Anyway I had it fitted today and I'm very pleased with the results. It had a deeper, more throaty sound and the DSG farts are much louder. Inside the cabin it sounds as loud as if you have the soundaktor in sport mode. (I leave mine in eco and will soon turn off with OBDeleven). At a cruise the sound is the same as a stock GTI muffler. You can hear the difference at cold start, free revving the engine and of course when the engine is under load which is where it's most noticeable.
I was in a rush today but I managed to take a before and after video although I'll try take better ones of acceleration and cold start etc.
Here is a link to the video for anyone who is interested.
https://youtu.be/sBOrwp3SGQU