Milltek Stainless Steel Particulate Filter-Back Performance Exhaust, Fits OE Trims, BMW G20 M340i xDrive Saloon 2019–2021 (OPF/GPF Models Only), Requires OE System Cut – SSXBM1157

Milltek Stainless Steel Particulate Filter-Back Performance Exhaust, Fits OE Trims, BMW G20 M340i xDrive Saloon 2019–2021 (OPF/GPF Models Only), Requires OE System Cut – SSXBM1157

£1,360.16
£1,360.16
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Milltek Particulate Filter-back Exhaust, fits OE trims, for BMW G20 M340i xDrive Saloon 2019 to 2021 OPF and GPF models only - Part No. SSXBM1157

Upgrade your BMW G20 M340i xDrive with the Milltek Particulate Filter-back exhaust SSXBM1157. This OPF back and GPF back performance exhaust keeps your factory particulate filter in place while delivering a deeper, sportier BMW M340i exhaust note with zero cabin drone. Designed to fit to the OE trims so you retain the OEM tailpipe look, this high quality UK made system is the perfect BMW M340i exhaust upgrade for daily driving and spirited road use.

Why choose Milltek for your BMW M340i exhaust

  • Made in the UK from aerospace grade type 304 non-magnetic stainless steel for long life and corrosion resistance.
  • Mandrel bent pipework for smooth, constant radius bends that optimise gas flow.
  • Carefully enlarged bore diameters over stock for performance without sacrificing mid-range torque.
  • Comprehensive acoustic development for a crisp, sporty tone without NVH, drone or cabin resonance.
  • Fits to OE trims so you keep the clean factory finish on your BMW 3 Series M340i tailpipes.
  • Retains the factory OPF and GPF for an easy, sensible upgrade path.

Fitment

  • Vehicle: BMW G20 M340i xDrive Saloon.
  • Years: 2019 to 2021.
  • Models: OPF and GPF equipped cars only.
  • Part number: SSXBM1157.
  • Connection: fits to OE trims and requires the OE system to be cut for installation.

Real-world results you can trust

We run Milltek systems on our own cars and have fitted this BMW M340i OPF back exhaust for many happy customers. Feedback is consistent: premium build quality, a deeper and more engaging sound, and perfect fitment with the OEM trims. If you want a quality stainless steel BMW M340i exhaust that looks factory and sounds right, SSXBM1157 is the go-to choice.

Installation and support

This particulate filter-back exhaust requires cutting the OE system. For professional fitting, we recommend booking with Nforcd in Warwickshire. Email Sales@nforcd.com for a fitting quote, availability and expert advice.

Key search terms

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Notes

  • OPF and GPF models only.
  • Requires the OE system to be cut during installation.
  • Fits to OE trims for an OEM style finish.