The Milltek Sport Cat Back exhaust system is designed for the BMW F22 LCI M240i Coupé model, where the B58 engine is equipped with an OPF particulate filter. The factory-fitted OPF significantly reduces noise, and the Milltek Cat Back solution is developed to restore the character of the engine in a controlled and high-quality way without excessive noise or disturbing resonance.
The Cat Back system replaces the section of the exhaust system after the OPF filter, improving flow and bringing more sportiness to the driving experience while maintaining the car's daily usability.
Balanced and sporty B58 soundscape
Milltek has tuned this system specifically for OPF models:
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Deeper and fuller sound at idle
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Clearer and more dynamic sound during acceleration
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Controlled volume at cruising speeds
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No annoying drone in your daily driving
- The exhaust is ECE approved when you choose with a resonator. Without a resonator, the exhaust is not ECE approved.
The sound profile highlights the strengths of the B58 engine while maintaining premium driving comfort.
Improved flow and ride feel
Milltek Cat Back Exhaust System:
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reduces exhaust back pressure after the OPF filter
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supports engine's sensitive throttle response
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improves the overall driving experience
The system works seamlessly with the car's original driving settings.
Easy bolt-on installation
The exhaust system is designed:
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to fit directly into the car's original mounting points
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compatible with rear-wheel drive models
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for installation without welding or permanent changes
OEM-level fit and finish ensure a discreet and high-quality finish.
304L Aircraft Grade Stainless Steel
The entire system is made of high-quality 304L grade stainless steel, which offers:
The choice of materials meets Milltek's premium quality standard.
Fit
Engine: 3.0 Turbo (B58)
Model years 2019–2020