Hello - I have a few parts for sale. Were purchased for my 2013 B8.5 S4.

BNIB:
ECS Front sway bar kit = $205
ECS Rear end links = $100
JXB Billet Linkage Reinforcement Kit = $200
JXB Rear Spring Perch Upper = $75

Used, good condition:
ECS Oil Filter Billet Cap = $50
ECS Coolant Res Billet Cap = $50
PU Issaquah, no shipping. Thanks

Images here:
https://photos.app.goo.gl/drgAGCJtTKxqQnfm6