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Exhaust› Catalytic Converters

Milltek Sport

Large Bore Downpipe w/ High-Flow Cat

Name: Large Bore Downpipe w/ High-Flow Cat
Brand: Milltek Sport
SKU: SSXVW641

$1,330.01 $889.93 Save $440.08

SKU: SSXVW641

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Moderate — 2–4 hours

Overview

The Milltek Sport SSXVW641 is a large bore downpipe and hi-flow sports catalytic converter system. This race system features a 3.7-inch (94mm) ID turbo outlet to an 80mm (3.15-inch) downpipe with a 200 CPSI race cat.

Show original supplier description

The Milltek Sport SSXVW641 is a large bore downpipe and hi-flow sports catalytic converter system designed to enhance the performance and sound of specific Volkswagen Golf models. The large bore design, measuring 3.7 inches (94mm) at the turbo outlet and transitioning to an 80mm (3.15-inch) downpipe, is mandrel-bent to ensure optimal gas flow and increased bore size for maximum performance without sacrificing mid-range torque. It incorporates a 200 CPSI race catalyst and includes an OPF/GPF bypass. This system is specifically designed to fit the Volkswagen Golf Mk8 GTi (245ps OPF/GPF Equipped Models Only, 2020-2024), Mk8 GTi Clubsport (300ps OPF/GPF Equipped Models Only, 2021-2024), Mk8.5 GTi (265ps OPF/GPF Equipped Models Only, 2024-2027), and Mk8.5 GTi Clubsport (300ps OPF/GPF Equipped Models Only, 2024-2027). Installation of this race system requires stage 2 ECU software. Please note that this system is not ECA approved and is intended for off-road use or racing applications where permitted. Milltek exhausts are designed, developed, and manufactured in-house in the UK, drawing on over 32 years of development expertise.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	Milltek Sport
Part Number	SSXVW641
Category	Exhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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