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MillTek Audi B9 RS4 Road+ Cat-Back Exhaust - ML Performance UK

MillTek Audi B9 RS4 Road+ Cat-Back Exhaust


  • £2,660.62
    exc. VAT £2,217.18


Our range of Cat-Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and/or add a more suitably aggressive tone.

All our products are made from 304L “Aircraft” Grade stainless steel. This quality material will ensure that your Cat-Back system will last through any harsh conditions


Available Tailpipe Options

  • Cerakote Black Oval Tailpipe (170 x 107)
  • Polished Oval Tailpipe (170 x 107)
  • Titanium Oval Tailpipe (170 x 107)
  • Burnt Titanium Oval Tailpipe (170 x 107)


Pipe Ø: 2.76" (70 mm) *


    Compatibility Check

    To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.



    Audi RS4 B9 Avant (2018 - Present) 2.9 V6 Turbo


      Manufactured by



      Part Number 

      SSXAU826 - Road Res Cerakote Black

      SSXAU825 - Road Res Polished

      SSXAU808 - Road Res Burnt Titanium

      SSXAU807 - Road Res Titanium

      SSXAU830 - Non-Res Cerakote Black

      SSXAU829 - Non-Res Polished

      SSXAU804 - Non-Res Burnt Titanium

      SSXAU803 - Non-Res Titanium

      SSXAU822 - EC-Approved Cerakote Black

      SSXAU821 - EC-Approved Polished

      SSXAU806 - EC-Approved Burnt Titanium

      SSXAU805 - EC-Approved Titanium

      Next Day UK Delivery

      Get FREE Guaranteed next day UK delivery for orders over £99 (exc. VAT), excluding larger items and certain remote postal codes/areas. Same day dispatch available if your order is placed before 1pm UK Time on all in stock items!

      Worldwide Shipping

      We ship worldwide via DHL International, simply enter your full address at checkout to see the shipping option(s) and quote(s). Same day dispatch available if your order is placed before 1pm UK Time on all in stock items!