Audi A4/S4/RS4 - B5
FWD
AirLift Performance - Front Kit Only- 75555
Quattro/4WD
AirLift Performance - Front & Rear Kits - 75555/75655
Audi A4/S4/RS4 - B6 & B7
AirLift Performance - Front & Rear Kits - 75578/75678
Audi A4/S4/RS4 - B8
AirLift Performance - Front & Rear Kits - 75558/75658
Audi A4/S4/RS4 - B9
A4 - 48.5mm Strut:
AirLift Performance - Front & Rear Kits - 78571/78670
A4/S4/RS4 & AllRoad - 53mm Strut: