Overview
Milltek Large Bore Downpipe with 200-CPSI hi-flow sports catalyst for the Audi TT Mk3 TTS 2.0TFSI Quattro, 2015 to 2018, non-OPF/GPF models. This downpipe fits Milltek cat-back systems only. It does not fit the OE cat-back. The equivalent downpipe for the OE cat-back is SSXAU585.
76.20mm (3.0") mandrel-bent T304L stainless steel with hand-finished welds and CNC-formed flanges. The large-bore section cuts backpressure and improves scavenging against the restrictive OEM downpipe. The 200-CPSI hi-flow sports catalyst is the EC-approved grade in the TTS downpipe range and flows substantially better than the restrictive factory unit. Stage 2 ECU remap required to realize the gains.
Details
Fitment Notes & Compatibility
- Vehicle: Audi TT Mk3 TTS 2.0TFSI Quattro, 2015 to 2018
- Not suitable for OPF/GPF equipped vehicles
- Cat-back: fits Milltek cat-back systems only. Does not fit the OE cat-back.
- Catalyst: 200-CPSI hi-flow sports catalyst, EC approved
- Bore: 76.20mm (3.0"), mandrel-bent T304L stainless steel
- Requires a Stage 2 ECU remap
- Direct fitment on OEM hangers and mounting points, no modification required
Part number SSXAU582. Choose SSXAU585 instead if the car runs the OE cat-back.
Designed and manufactured in the UK with over 40 years of performance exhaust heritage. Nurburgring tested.
Fitment
| Years | Make | Model | Engine Family | Engine | Trim |
|---|---|---|---|---|---|
| 2016-2023 | Audi | TTS | EA888 Gen 3 | 2.0T | All |
| 2016-2023 | Audi | TT | EA888 Gen 3 | 2.0T | All |
