STM Stainless Downpipe Flange | 2017-2021 Audi RS3 and 2018-2021 Audi TTRS (STM-RS3-DPF)

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2017-2021 Audi RS3 and 2018-2021 Audi TT RS Stainless Downpipe Flange by STM

STM stainless steel downpipe flange for 2017-2020 Audi RS3. If you're looking to fabricate your own custom downpipe or exhaust, this is perfect for your welding project! This billet v-band flange will mate perfectly to your factory turbo giving you the smoothest possible transition from the turbo outlet. If you need a new Audi V-Band Clamp, they are also available.


  • Billet Stainless Steel
  • Smoothest Possible Design
  • Mates to Factory Turbo Outlet Size


  • Perfect Solution for Making a Custom Downpipe to Mate to Your Stock Turbo

Please Note: This is designed to be used with the stock turbo and may not work with aftermarket turbos.


  • 2017-2021 Audi RS3
  • 2018-2021 Audi TT RS

What's In The Box?

  • 1 - Downpipe Flange


  • STM offers a limited lifetime warranty on this product.

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