034Motorsport Density Line Adjustable Upper Control Arm Kit, Track Spec, B8 Audi A4/S4/RS4, A5/S5/RS5, Q5/SQ5 MSRP: $767.91
Audi OEM Timing Chain Guide Rail - (Upper) for B9 S4/S5/RS5 & C8 S6/S7/RS6/RS7 (06M109509L) MSRP: $80.00
Audi OEM Timing Chain Guide Rail - (Upper) for B9 S4/S5/RS5 & C8 S6/S7/RS6/RS7 (06M109513G) MSRP: $23.00