Rear camber spec for the GTI/R is 1.75deg +/- 0.5deg, which is noticeable...... If your car is lowered, it would increase the camber as you lowered the ride height....I just now realized that my GTI has a significant amount of negative camber in the rear. What's the factory alignment spec? Or maybe it was modded by the previous owner?
Compared to the front axle camber spec which is only 41' +/- 30' (~0.68deg +/- 0.5deg) on the GTI, its considerably more.
https://www.vwvortex.com/threads/stock-alignment-specs.9498629/