AUDI RS3 exhaust downpipe

By Felicia February 26th, 2026 61 views
AUDI RS3 exhaust downpipe

Audi RS3 2017+ Stainless Steel Decat Downpipe 

  • The RS3 downpipe and flanges are machined from SS304 aircraft-grade stainless steel and are tig welded in house
  • The downpipe is 4” straight out of the turbo and 2.5” when it splits into 2 which provides a sharper throttle response due to faster spool of the turbo.
  • Provides noticeable power gains and a much more aggressive exhaust note which sounds truly amazing. Feedback from customers is that the downpipe crackles and bangs but is quiet on the motorway which is perfect.
  • It produces lower temperatures and less exhaust backpressure due to the relief of the turbocharger. The cylinder charge is increased meaning you get maximum performance.
  • There is also a substantial weight saving in comparison to the factory catalytic converter.
  • The decat is mandrel-bent for better gas flow and maximum internal size to ensure ultimate performance without the loss of mid-range torque.
  • Finished in brushed stainless
  • We have tested this product and found increases of around 25-30bhp on test vehicles however, it does have the capability of increasing horsepower by 120-150bhp once your car has a stage 2 map.


Will fit the following models perfectly: 

  • Audi TTRS 8S 2017+
  • Audi RS3 8V 2017+ 


Professional installation is recommended as some exhausts sit slightly different from others. This requires the prop shaft to be taken off to fit the decat.


We also recommend purchasing a Lambda Sensor Spacer(s) to prevent the engine light coming on in most cases. If you search our other items you will find these. 

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