Milltek Large-Bore De-Cat (Catless) Downpipe for BMW G20 M340i xDrive Saloon OPF/GPF Models 2019-2021 | Fits OE & Milltek Cat-Back | Requires Stage 2 ECU Remap | SSXTY119

Milltek Large-Bore De-Cat (Catless) Downpipe for BMW G20 M340i xDrive Saloon OPF/GPF Models 2019-2021 | Fits OE & Milltek Cat-Back | Requires Stage 2 ECU Remap | SSXTY119

£587.34
£587.34
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Milltek Large-bore De-cat Downpipe for BMW G20 M340i xDrive Saloon OPF GPF 2019 to 2021

Part number: SSXTY119

Unlock more flow, response and sound from your BMW with the Milltek Large-bore Downpipe and De-cat for the G20 M340i xDrive Saloon OPF GPF models 2019 to 2021. This high performance catless downpipe is engineered to fit both Milltek Sport cat back and OE cat back systems, delivering a freer flowing exhaust path that is built to maximise Stage 2 tuning potential. If you are searching for BMW M340i downpipe, M340i de-cat, M340i catless downpipe, G20 M340i performance exhaust upgrade or M340i xDrive down pipe, this is the proven Milltek solution.

Every Milltek system is designed, developed and hand finished in the UK by time served craftsmen, using aerospace grade type 304 non magnetic stainless steel throughout. This material resists discolouration, offers outstanding durability and is used for all pipework, silencers and associated hardware.

  • Large bore de-cat downpipe for maximum exhaust gas flow
  • Type 304 stainless steel construction for long term corrosion resistance
  • Mandrel bent pipework ensures constant radius bends for optimised flow
  • Comprehensive acoustic development for a sporty, crisp tone without drone or cabin resonance
  • Direct fit to Milltek Sport and OE cat back systems
  • OPF GPF models only for BMW G20 M340i xDrive Saloon 2019 to 2021
  • Requires Stage 2 ECU remap
  • Designed, developed and hand finished in the UK

Why choose this Milltek M340i downpipe

This Milltek de-cat downpipe replaces the restrictive factory section to reduce back pressure and improve gas velocity, supporting stronger performance when paired with a Stage 2 ECU calibration. The result is a sharper, more engaging drive with a deeper, motorsport inspired exhaust note that remains refined on the motorway thanks to Milltek’s extensive acoustic tuning. If you are looking for BMW 3 Series G20 M340i de-cat, BMW M340i xDrive downpipe upgrade, or a plug and play M340i catless downpipe that fits OE and Milltek cat back systems, SSXTY119 is the go to choice.

Fitment

  • BMW 3 Series G20 M340i xDrive Saloon OPF GPF models only
  • Model years 2019, 2020, 2021
  • Fits Milltek Sport cat back systems and OE cat back systems

What our customers say

We have installed and used this Milltek downpipe on customer cars and feedback has been consistently positive, praising the precise fit, premium finish and the addictive sound under load.

Professional fitting available

Want it fitted by specialists who know performance exhausts inside out? Book professional installation with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.

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