Milltek Large-Bore Downpipe – Golf MK8 R, T-Roc R, Tiguan R, S3 8Y – Euro Flow
Volkswagen Golf R (2021-) MK8 Milltek Downpipe
Volkswagen Golf R (2021-) MK8 Milltek Downpipe
Volkswagen Golf R (2021-) MK8 Milltek Downpipe
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Volkswagen Golf R (2021-) MK8 Milltek Downpipe

$3,099.00
$3,099.00
$3,175.00
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Milltek Large Bore Downpipe — VW/Audi 2.0 TSI (EA888.4)

Overview

Elevate your performance and sound with the Milltek Large Bore Downpipe—a high-flow replacement designed to unlock greater turbo efficiency and deeper exhaust character. Machined from premium materials and engineered with precision, this downpipe offers a direct, bolt-on upgrade for MK8 platforms such as Golf R, Tiguan R, T-Roc R, Audi S3 8Y, and Cupra Formentor VZx. Note: A Stage 2 ECU remap is required for optimal performance.

Available Configurations and SKUs

The Milltek Downpipe comes in several variants to fit different setups—whether you run a Milltek or OEM cat-back system, and whether your vehicle has an OPF/GPF or non-OPF configuration. All options feature a 94 mm (3.7") turbo outlet transitioning to an 80 mm (3.15") downpipe, with varying catalyst types:

Application Cat Type Compatible Cat-Back System SKU(s)
GPF models with Milltek Cat-Back Hi-Flow Sports HJS Cat Milltek Cat-Back SSXVW635
GPF models with OEM Cat-Back Hi-Flow Sports HJS Cat OE Cat-Back SSXVW673 / SSXVW732
GPF models with Milltek Cat-Back Hi-Flow Sports Race Cat Milltek Cat-Back SSXVW638
GPF models with OEM Cat-Back Hi-Flow Sports Race Cat OE Cat-Back SSXVW674
GPF models with Milltek Cat-Back De-cat (Track Only) Milltek Cat-Back SSXVW663
GPF models with OEM Cat-Back De-cat (Track Only) OE Cat-Back SSXVW676
Non-GPF models with Milltek Cat-Back Hi-Flow Sports HJS Cat Milltek Cat-Back SSXVW636
Non-GPF models with OEM Cat-Back Hi-Flow Sports HJS Cat OE Cat-Back SSXVW673 / SSXVW732
Non-GPF models with Milltek Cat-Back Hi-Flow Race Cat Milltek Cat-Back SSXVW637
Non-GPF models with OEM Cat-Back Hi-Flow Race Cat OE Cat-Back SSXVW675 / SSXVW730
Non-GPF models with Milltek Cat-Back De-cat (Track Only) Milltek Cat-Back SSXVW664
Non-GPF models with OEM Cat-Back De-cat (Track Only) OE Cat-Back SSXVW677 / SSXVW740

Key Benefits

  • Larger Diameter Flow — The upgraded bore minimizes restriction and allows exhaust gases to exit more rapidly, enhancing turbo response and efficiency.

  • Performance-Driven Acoustics — Combined with a sports or race catalyst (or de-cat option), expect a noticeably richer and more aggressive sound.

  • Multiple Fitment Options — Compatible with both Milltek and OEM cat-back systems, as well as particulate filter–equipped (GPF/OPF) or non-PF models, ensuring tailored fitment.

  • Stage 2 ECU Remap Required — To fully benefit from increased flow, a performance ECU tune is necessary.

Final Thoughts

The Milltek Large Bore Downpipe is a premium upgrade for Volkswagen and Audi enthusiasts seeking improved airflow, turbocharger efficiency, and a more capable sound profile. With a complete selection of catalyst and fitment options, it delivers a fit and tone ideal for spirited street use—and track-day excitement when opting for de-cat versions

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