Milltek GPF/OPF Bypass Large Bore Downpipes with Decats for BMW M4 F82 F83 and M4 Competition OPF/GPF 2019 to 2020 – Part Number SSXBM1128
Transform the sound and performance potential of your BMW M4 with Milltek’s GPF OPF bypass large bore downpipes with decats, part number SSXBM1128. Designed specifically for OPF GPF models of the BMW M4 F82 Coupe, F83 Convertible and M4 Competition from 2019 to 2020, these Milltek downpipes deliver maximum exhaust gas flow, reduced backpressure and a harder, motorsport-inspired exhaust note. Perfect for enthusiasts seeking an OPF delete and decat solution for track and motorsport use.
Crafted in the UK from aerospace grade type 304 non-magnetic stainless steel, every Milltek component is hand-finished by expert fabricators. Precision mandrel bending keeps a constant radius for optimised gas flow, and the carefully increased bore enhances performance without sacrificing mid-range drivability. Milltek’s acoustic development ensures the tone is aggressive, crisp and purposeful without unpleasant cabin resonance.
Why choose Milltek SSXBM1128 downpipes for your BMW M4
- Purpose-built OPF GPF bypass and decat downpipes for OPF GPF models only, 2019 to 2020 BMW M4 F82 F83 and M4 Competition
- Large bore mandrel-bent stainless steel for optimised exhaust gas flow and reduced turbo backpressure
- Hand-finished in the UK using high quality type 304 stainless steel for durability and corrosion resistance
- Delivers a significantly more aggressive, motorsport-style exhaust note suitable for track environments
- Ideal foundation for further performance tuning on the S55 twin turbo platform
- Engineered to work seamlessly within Milltek performance exhaust setups
Fitment and compatibility
- BMW M4 F82 Coupe OPF GPF 2019 to 2020
- BMW M4 F83 Convertible OPF GPF 2019 to 2020
- BMW M4 Competition OPF GPF 2019 to 2020
- OPF GPF models only
- Milltek part number: SSXBM1128
Real-world results
We have fitted these Milltek OPF GPF bypass downpipes and the feedback from our customers has been excellent. Expect a sharper throttle response feel, freer-revving character and a much more engaging sound that really unlocks the personality of the BMW M4 S55 engine on track.
Notes
- For off-road and motorsport use only where removal of emissions equipment is permitted
- Professional installation recommended
Fitting and enquiries
Want these fitted by specialists who know BMW M cars inside out? Book installation with Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Key search terms
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