Been riding on H&R SS springs for far too many miles on stock struts. Finally upgrading to Koni Yellows. I recall there being an Audi TT part for the rear that fixes the sag that happens with a spring swap but can't track it down. I think it's the part below, but can someone confirm?
https://www.ecstuning.com/b-genuine...r-upper-spring-packing-priced-each/8j0512149/
https://www.ecstuning.com/b-genuine...r-upper-spring-packing-priced-each/8j0512149/