Milltek Sport Cat-Back Exhaust for Audi RS6 C5 (20022004) 4.2 V8 Bi-Turbo | Non-Resonated or EC-Approved | 2.75in (70mm) | Black/Polished Oval Tips | Saloon & Avant

C5 RS6 4.2 Biturbo Performance Catback by Milltek Sport

Give your C5-generation RS6 the voice it deserves with Milltek Sport’s rear system. Developed in Britain for the 2002 to 2004 Audi RS6 4.2 twin turbo V8, this larger bore 70 mm setup releases a deeper, more purposeful soundtrack while maintaining excellent drivability and OEM-like fit. Choose subtle or wild with EC Approved or louder non resonated options, and finish the look with smart 150 x 95 mm oval tailpipes in either Black or Polished.

We have fitted this system on our own builds and many customer cars and the feedback has been consistently brilliant on sound quality, finish and fitment. If you want a high quality upgrade that transforms tone and presence without compromise, this is the one.

Key reasons enthusiasts choose this system

• Optimised for the 4.2 biturbo V8 for improved flow and a richer, more aggressive note
• Direct bolt on cat back solution that fits both Saloon and Avant models with precise alignment
• Crafted and engineered in the UK by Milltek Sport for long lasting performance
• 70 mm 2.75 inch pipework for a free flowing design that unlocks the RS6 character
• Tailpipe choice to suit your style Black or Polished 150 x 95 mm ovals

Sound level options

• Non resonated for maximum drama more volume, more turbo presence and a motorsport inspired tone
• EC Approved for a more refined, neighbour friendly drive while still enhancing the V8 soundtrack

Fitment and specifications

• Vehicle fitment Audi C5 RS6 2002 to 2004 4.2 biturbo V8 Saloon and Avant Estate
• Pipe diameter 70 mm 2.75 inch
• Tip size 150 x 95 mm oval Black or Polished
• Configuration Cat back available in Non Resonated or EC Approved variants

What you receive

• Left hand centre section
• Right hand centre section
• Left hand rear silencer backbox
• Right hand rear silencer backbox
• Left hand 150 x 95 mm oval tailpipe Black or Polished as selected
• Right hand 150 x 95 mm oval tailpipe Black or Polished as selected
• Brace bar and required fittings as supplied by Milltek Sport

Part numbers

• SSXAU211 Non Resonated Black
• SSXAU355 Non Resonated Polished
• SSXAU212 EC Approved Black
• SSXAU354 EC Approved Polished

Professional installation

Want it fitted correctly first time Our workshop can help. Book expert installation at MJ Modifications in Warwickshire. Request a fitting quote via info@mjmodifications.co.uk.

Trusted by owners

Tested on our own RS6s and countless customer vehicles, this Milltek Sport system delivers the rich, turbocharged V8 sound enthusiasts want, with excellent build quality and spot on fitment.

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