Milltek Cat-back GPF-OPF Back Race with Polished GT-90 Trims for BMW M4 F82 F83 and M4 Competition 2019 to 2020 OPF-GPF Models Only
Part number: SSXBM1117
Upgrade your BMW M4 exhaust with the Milltek Cat-back GPF-OPF Back Race system with Polished GT-90 trims. Engineered for the 2019 to 2020 BMW M4 F82 Coupe, F83 Convertible and M4 Competition Coupe with OPF-GPF, this performance exhaust delivers an aggressive, motorsport-inspired tone, premium build quality and long-term durability. If you are searching for a BMW M4 exhaust upgrade, M4 Competition exhaust, Milltek M4 cat back, OPF back exhaust or GPF back exhaust for F82 F83, this is the go-to choice.
Why choose this Milltek M4 exhaust
- Hand-built in the UK by Milltek using aerospace grade type 304 non-magnetic stainless steel for exceptional corrosion resistance and longevity.
- Mandrel-bent pipework for constant-radius bends and optimised gas flow.
- Carefully enlarged bore over stock for enhanced performance while retaining mid-range torque.
- Comprehensive acoustic development produces a sporty, crisp race tone without NVH, drone or cabin resonance.
- Polished GT-90 tailpipe trims for a bold, OEM-plus finish.
- GPF-OPF back race configuration for OPF-GPF equipped models.
Fitment and compatibility
- BMW M4 F82 Coupe 2019 to 2020 with OPF-GPF
- BMW M4 F83 Convertible 2019 to 2020 with OPF-GPF
- BMW M4 Competition Coupe 2019 to 2020 with OPF-GPF
- OPF-GPF models only
- Milltek part number SSXBM1117
Built to perform, built to last
Every Milltek system is designed, developed and hand-finished in the UK by time-served craftsmen. Type 304 stainless steel is used throughout the pipework, silencers and hardware. This premium material is less susceptible to discolouration and is made to last almost indefinitely. Precision mandrel bends maintain a constant radius for smooth gas flow, while the enlarged bore is tuned to deliver performance without sacrificing mid-range torque. The result is a sharper, more engaging soundtrack and a high-quality finish that enhances your BMW M4.
Nforcd experience
We have fitted this Milltek M4 exhaust at Nforcd and our customers have been delighted with the build quality, fit and the crisp, sporty tone with no unwanted drone. It looks the part thanks to the Polished GT-90 tips and it sounds exactly how an M4 should.
Professional fitting
Want it installed by specialists who know BMW and Milltek inside out? Book professional fitting with Nforcd in Warwickshire. Request a quote at Sales@nforcd.com.
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