Spoon rigid collars installed. My impressions in comments. : r/S2000
SPOON Front & Rr Rigid Collar Kit for A4 8DA/8EA/8EB 50261-8EB-000/50300-8EB-000 | eBay
Rigid Collar - This chassis cut away represents how the Spoon Sports Rigid Collars work. The little golden coloured collars fit between the chassis and the subframe to remove the manufacture tolerances