Powerflex PFR85-513 replaces the rubber outer bush on the rear upper link (wishbone) for Audi A3 8P, S3 8P and RS3 8P. Fits arms with OEM numbers 5Q0 505 323 D and 1K0 505 323 N.
Stiffer polyurethane reduces deflection under load - sharpening turn-in response and cutting wheel hop on hard acceleration. Ideal for fast-road or track-day use where precision matters more than plushness.
Direct fit: no modification needed
Black (PFR85-513BLK) or standard compound
Not a full suspension upgrade - but a focused, effective tweak
