The Milltek ValveSonic RH Rear Silencer is a premium component of the complete Milltek Cat-Back exhaust system for the Audi RS6 / RS7 C7 4.0 TFSI Biturbo Quattro, including the Performance Edition (model years 2013–2018).
Designed for enhanced sound performance, flow efficiency, and durability, this silencer retains the original OE valve motors (OE motors to be re-used).
⚠️ Note:
This part can only be installed in combination with other Milltek components within the Cat-Back system. Not compatible with OEM or non-Milltek exhaust parts.
Specifications:
✅ Part number: MSAU590
🚗 Fitment: Audi RS6 / RS7 C7 4.0 TFSI Biturbo Quattro (incl. Performance Edition, 2013–2018)
🔊 Type: ValveSonic RH Rear Silencer (Right Rear Section)
⚙️ Installation: Only fits as part of a complete Milltek Cat-Back system
♻️ Valves: OE motors must be re-used
🇬🇧 Origin: Genuine Milltek Sport product, made in the UK