Two reasons lads.
1. Doing it for looks/show
2. All the people that have sold the OEM setup are going for big power for track duty so will need somthing a bit bigger
A tuned TTRS will be going quite a bit quicker down the back straight of a track than a stage 2 plus eddy, and we are heavy, so brakes have a good task on their hands. They are fine at 360 - 400hp, a good improvement over the 345mm setup and lighter.
They would be the danglies on the lighter golf imo.
Dave Im gonna get two sets of pagid RS29's off you!