New in box B6 S4 clutch, New OEM Clutch Kit, 02-051 $150 plus shipping.
Clutch came with the car from previous owner, who had spare parts. I have no need for it, never opened. Can get a picture if needed, but....its a clutch.

Used Stratmosphere open-element filter and heat shield for B6 S4, Air Intakes - HyperFlow V84 Intake System for S4 V8 $125 plus shipping.
Sounds great, excellent heat shield design, lots of life on the filter. Came on the car, ~20k miles on it at most. Mini breather filter shows some wear from rubbing on heat shield, but main element and all other parts are pristine. Can snap pics if needed, still on the vehicle at the moment.

Thanks for looking.