Spool race downpipe, Audi S4/S5 B9/B9.5
This EA839 turbo downpipe reduces restriction after the turbocharger. The 304 stainless tube uses TIG welds and smooth bends.
Technical details
- Manufacturer describes a direct-fit replacement of the stock part.
- The catless race construction changes sound and calls for suitable ECU calibration.
Example fitments
Audi S4 3.0T B9 (2017–2019), B9.5 (2020–2024); Audi S5 3.0T B9 (2018–2019), B9.5 (2020–2024).
Competition use only; not road legal in Finland.
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