Description
Milltek Large Bore Downpipe with Hi-Flow Sports Catalyst (For Milltek Cat-Back) (Audi/VW) is a genuine Milltek product supplied under part number SSXAU423.
Official Milltek fitment:
- Audi > S3 > 2.0 TFSI quattro 3-Door 8V/8V.2 (Non-GPF Equipped Models Only) > 2013 to 2018
- Audi > S3 > 2.0 TFSI quattro Saloon & Cabrio 8V/8V.2 (Non-GPF Equipped Models Only) > 2013 to 2018
- Audi > S3 > 2.0 TFSI quattro Sportback 8V/8V.2 (Non-GPF Equipped Models Only) > 2013 to 2018
- Volkswagen > Golf > Mk7 2.0TFSI Alltrack / Estate / Station Wagon / Combi 4-Motion > 2016 to 2021
- Volkswagen > Golf > MK7 R 2.0 TSI 300PS (ECE Approved & 76.2mm Systems) > 2014 to 2016
- Volkswagen > Golf > MK7 R Estate / Variant 2.0 TSI 300PS > 2015 to 2017
- Volkswagen > Golf > Mk7.5 R 2.0 TSI 310PS (Non-GPF Equipped Models Only) – 76mm & EC Approved Systems > 2017 to 2021
Application verified against Milltek’s official product page. Price is the supplied Australian retail price including GST and excluding domestic freight.
Important fitment requirements
- 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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