Catalytic Converters

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

Brand: Milltek

Part #: SSXAU586

$1,523.68+1523 pts

In Stock

SKU: MK-SSXAU586

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Description

Milltek Large Bore Downpipe with 200-cell HJS sports catalyst for the Audi TT Mk3 TTS 2.0TFSI Quattro, 2015 to 2018, non-OPF/GPF models. This downpipe fits the OE cat-back only. It does not fit Milltek cat-back systems. The equivalent downpipe for Milltek cat-back systems is SSXAU583. 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 HJS sports catalyst replaces the 500 to 600 cell OEM substrate, cutting restriction while retaining a catalyst in the turbo-back path. 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 the OE cat-back only. Does not fit Milltek cat-back systems. • Catalyst: 200-cell HJS sports 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 SSXAU586. Choose SSXAU583 instead if the car runs Milltek cat-back systems. Designed and manufactured in the UK with over 40 years of performance exhaust heritage. Nurburgring tested.