My original top mounts spun and had to be grinded off when I first fitted the Coilovers late last year, when I swapped them out for rs3 mounts last month with the new suspension kit they undone easily. Most probally because they were only 6 months old. Rs3/TT mounts are definitely much better than oem gti ones.
I paid about £53 iirc for the whole lot from TPS