Milltek GPF and OPF Bypass With Module - BMW 128ti F40 5 Door - Fits OE System Only - No ECU Tuning Required - Part No. SSXBM1200
Unlock the true sound and response of your BMW 128ti with the Milltek GPF and OPF Bypass, engineered to fit the original OE exhaust system only and supplied with an OPF and GPF bypass module so no ECU tuning is required. Designed specifically for the BMW 128ti 5 Door F40 with OPF or GPF from 2021 onwards, this upgrade delivers freer exhaust flow, sharper throttle response and a more engaging, sporty exhaust note.
Why choose Milltek for your BMW 128ti F40
- Aerospace grade type 304, non-magnetic stainless steel for long-term durability and corrosion resistance.
- Hand-finished in the UK by time-served craftsmen for precise quality and fit.
- Mandrel-bent pipework for consistent bore and optimised gas flow.
- Carefully developed to provide a crisp, sporty tone without unwanted NVH, drone or cabin resonance.
- Direct fit to the OE system only with included OPF and GPF bypass module - no ECU remap required.
What this OPF and GPF bypass does
- Reduces exhaust restriction from the factory Gasoline Particulate Filter - also known as OPF, GPF or PPF - for improved flow.
- Enhances performance potential and engine response by allowing the turbo to breathe more freely.
- Releases a deeper, more authentic BMW 128ti exhaust sound while maintaining refinement.
Fitment
- Vehicle: BMW 128ti - 5 Door - F40 - OPF and GPF equipped - 2021 onwards.
- System: Fits to the OE exhaust system only.
- Part number: SSXBM1200.
Included
- Milltek OPF and GPF bypass section for the BMW 128ti F40.
- OPF and GPF bypass module - plug-in solution so no ECU tuning is required.
Why buy from Nforcd
We are enthusiasts first and foremost. We have run Milltek setups on our own cars and our customers consistently love the sound quality, the sharper response and the premium UK-made finish. If you want a proven BMW 128ti exhaust upgrade that keeps things simple and effective, this Milltek GPF and OPF Bypass is exactly that.
Professional fitting available
For installation, we recommend booking with Nforcd in Warwickshire. Email Sales@nforcd.com for a fitting quote and availability.
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