Race haus Intake system MST-AD-A406 - Audi S4 S5 B9 3.0T 2019+ Induction Kit
Race haus Intake system MST-AD-A406 - Audi S4 S5 B9 3.0T 2019+ Induction Kit
Race haus Intake system MST-AD-A406 - Audi S4 S5 B9 3.0T 2019+ Induction Kit
Race haus Intake system MST-AD-A406 - Audi S4 S5 B9 3.0T 2019+ Induction Kit

Audi S4 S5 B9 3.0T 2019+ Induction Kit MST

Tax included



Shipping & Warranty

This is a performance enhancing induction kit for the 2019+ Audi S4/S5 B9 3.0T engine.

What Does It Do?

This induction kit delivers increased air flow and induction noise over the standard restrictive air box. Whether this kit is being installed to a standard vehicle or to a already tuned vehicle, you can be sure of the positive performance gains this will deliver.


  • Improved throttle response
  • Black powdercoated heat shield and inlet pipe
  • Dyno results: max gains 12-14bhp (this may vary dependant on vehicle)
  • Easy to maintain dry pleated filter
  • Cold air straight to the turbo charger

In the box

MST Performance utilise the top quality components in all of their kits see below for what this kit will include..

  • Black powdercoated heat shield
  • Black Silicone inlet pipe
  • Red pleated filter
  • Full fitting kit with easy step by step instructions


Compatible models

  • Audi S4 (B9) – 3.0T V6 TFSI (EA839) – 2019+
  • Audi S5 (8T) - 3.0T V6 TFSI (EA839) – 2019+
  • Audi S4 Quattro (B9) – 3.0T V6 TFSI (EA839) – 2019+
  • Audi S5 Quattro (8T) - 3.0T V6 TFSI (EA839) – 2019+

At Racehaus, we value customer satisfaction above all else. We strive to ensure that all products are in stock and ready to ship. However, in the instance that a product is not immediately available, we will promptly notify you before you place your order, so you can avoid any disappointment. 

Our typical turnaround time for dispatch is between 2 to 5 days. Shipping starts from as little as £5.99

Please note that this timeframe may be subject to supplier availability. We take pride in being transparent about lead times, and if a product has a longer lead time, we will personally contact you to provide updates on the shipping process. 

Let us take care of all your product needs with excellent customer service.
We are happy to inform you that we offer worldwide shipping on all our products. You can place your order with confidence knowing that we are committed to maintaining a high level of service quality. 

In case you need to return your product, we offer a 14-day return policy. Please refer to our returns policy for more details. 

Additionally, to give you extra peace of mind, This product comes with a manufacturer's warranty. You can check our warranty policy for more information.

We're committed to providing you with personalised support and assurance with all your order decisions. Our team is constantly striving to improve your experience with us, and we stand behind every product we sell. We're here to help answer any questions you may have. 

Don't hesitate to contact us for more information or assistance.

Customer Reviews

Based on 1 review
Florin Mihalcea
Does not fit S5

The instructions and product photos are based on a RS5 which has a different cooling system the rs5 has only one cooling line routed under the filter case. However the s5 has 3 of them and it takes more space and the air box floor does not clear them. I had to cut the bottom part of the box along those lines.
Apart from this it’s a good product. But not for s4/s5

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