034Motorsport 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5, & RS5 MSRP: $1,565.85
Audi/VW Genuine OEM Rear Differential & Transfer Case Service Kit (With Torque Vectoring Differential) for B8/8.5 A4/A5/S4/S5/RS5 MSRP: $160.00
Audi/VW Genuine OEM Rear Differential Service Kit (With Torque Vectoring Differential) for B8/8.5 A4/A5/S4/S5/RS5 MSRP: $95.00
Audi Genuine OEM Rear Differential Service Kit (Without Torque Vectoring Differential) for B8/8.5 A4/A5/S4/S5/Allroad/Q5 MSRP: $95.00
