Milltek Sport Cat-Back Valved Exhaust System for Audi RS4 B8 4.2 FSI quattro Avant (2012+) with Resonated Downpipes - Polished or Cerakote Black Tips - 60.3mm - SSXAU337 SSXAU336
Milltek Sport Cat-Back Valved Exhaust System for Audi RS4 B8 4.2 FSI quattro Avant (2012+) with Resonated Downpipes - Polished or Cerakote Black Tips - 60.3mm - SSXAU337 SSXAU336
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Milltek Sport Cat-Back Valved Exhaust System for Audi RS4 B8 4.2 FSI quattro Avant (2012+) with Resonated Downpipes - Polished or Cerakote Black Tips - 60.3mm - SSXAU337 SSXAU336

£2,275.01
£2,275.01
£2,527.79
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Milltek Audi B8 RS4 Cat-Back Exhaust

Unlock the signature Milltek sound and premium build quality with the Milltek valved cat-back exhaust system for the Audi RS4 B8 4.2 FSI quattro Avant 2012 and later. This performance exhaust is engineered in the United Kingdom and tailored specifically for the Audi RS4 B8 platform, delivering a deeper, sportier soundtrack with refined everyday manners and the quality enthusiasts expect from Milltek.

Choose your finish to suit your RS4: polished tips or Cerakote black trims. The system features active exhaust valves and includes resonated downpipes for a balanced tone that enhances the RS4 driving experience.

Why choose this Milltek RS4 B8 cat-back exhaust

  • Designed specifically for Audi RS4 B8 4.2 FSI quattro Avant 2012 onwards
  • Valved cat-back exhaust for a dynamic, engaging sound
  • Choice of polished or Cerakote black exhaust trims
  • Developed and manufactured in the UK by Milltek with decades of performance exhaust expertise
  • Built for performance, quality, and durability with a premium fit and finish

Specification

Pipe diameter: 2.37 inch 60.30 mm

What’s included

  • 1 x LH downpipe resonated
  • 1 x RH downpipe resonated
  • 1 x centre silencer replacement assembly
  • 1 x LH rear silencer with active exhaust valve
  • 1 x RH rear silencer with active exhaust valve

Compatibility

Audi RS4 B8 4.2 FSI quattro Avant 2012 and later.

Part numbers

SSXAU337, SSXAU336

Real-world feedback

We have fitted this Milltek RS4 B8 cat-back exhaust for customers who wanted a true performance exhaust upgrade for the Audi RS4 B8. The feedback has been consistently positive, praising the richer tone, excellent valve control, and the high quality finish of the tips and system throughout.

Fitting and support

Professional installation is recommended. For fitting at Nforcd in Warwickshire, request a quote at Sales@nforcd.com. We also run a compatibility check prior to dispatch to ensure the part suits your vehicle. Simply provide your UK registration number or the last 7 digits of your VIN at checkout.

About Milltek

With over 32 years of UK-based design, engineering, and production, Milltek has built a leading reputation in performance exhausts, with applications spanning Audi, Volkswagen, Porsche, BMW, and Bentley, along with deep involvement in the global motorsport community. This experience flows directly into every Milltek system.

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