Catalytic Converters

Milltek Large Bore Downpipe, Race Cat, Milltek Cat-Back | Audi TT Mk3 TTS 2.0TFSI Quattro

Brand: Milltek

Part #: SSXAU604

$1,079.63+1079 pts

In Stock

SKU: MK-SSXAU604

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Description

Milltek Large Bore Downpipe with 200-cell race 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 SSXAU605. 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-cell race catalyst drops cell density well below the 500 to 600 cell OEM substrate for the highest flow in the range. Stage 2 ECU remap required to realize the gains. Fitment & 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-cell race catalyst • 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 SSXAU604. Choose SSXAU605 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.