Re: GT3 LSD plates only good for 10 track days?
This is not true, however, they will need eventual replacement. Don't know how many track days you get on the stock unit - probably a couple years of fairly frequent DE's.
Guard and Porsche Motorsports both make a more robust version. This is not a DIY project - there are specialized tools and expertise required to do this right, unfortunately (need to set pre-load, etc.).