mine had an all silver GTI badge on the back (GT TDI 150) but the bloke i bought it from had the badge removed to fix a dent in the boot.
I'm going to leave it de-badged for 2 reasons;
1 no matter how long i spend lining up a new badge it would never look right would either be too far left or too high etc.
2 people don't know what you've got untill you leave them in a cloud of 'dirty' smoke