Milltek Downpipe (With sports cat or decat) & GPF Bypass - Audi RS6 C8 / RS7 C8 / S8 D5 MMR37-1501-70B Proven power increases for fast

Proven power increases for fast road & track

this is not just an upgrade—it's a transformation in visibility

💬 Upgrade every detail

Insulate your Audi TTRS engine turbo to reduce excess heat within your engine bay

🔧 Technical Specifications:

Milltek Downpipe (With sports cat or decat) & GPF Bypass - Audi RS6 C8 / RS7 C8 / S8 D5 MMR37-1501-70B Proven power increases for fastThis product alters a factory emissions control device and does not meet current emission laws. For motorsport use only. FITS: Audi RS6 C8 4. 0 V8 bi turbo in Performance Edition (OPF GPF Models) 2019 and Later Audi RS7 C8 4. 0 V8 bi turbo (OPF GPF Models) 2019 and Later Audi S8 D5 4. 0 TFSI V8 Saloon Sedan (OPF GPF UK Euro Models) 2020 and Later Fits to OE OR MILLTEK OPF GPF Back System include OPF GPF Bypass Requires Stage 2 ECU Software Why Buy a