Description
Milltek Audi RS4 B7 – Hi-Flow Sports Cats is a genuine Milltek product supplied under part number SSXAU115.
Official Milltek fitment:
- Audi > RS4 > B7 4.2 V8 Saloon, Avant and Cabriolet – V1 & ECE Systems > 2006 to 2008
Application verified against Milltek’s official product page. Price is the supplied Australian retail price including GST and excluding domestic freight.
Important fitment requirements
- For motorsport/track use only; not approved for road use.
- Must be fitted with the matching Milltek Sport cat-back system.
- Requires a Stage 2 ECU remap.
Please confirm vehicle details and required supporting hardware/software before ordering. Your VIN will be checked as an additional fitment safeguard.

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