Milltek Large-bore Downpipe and De-cat for BMW M240i Coupé G42 xDrive OPF GPF Models Only 2022 on - Part Number SSXTY119
Unlock the performance potential of your BMW M240i G42 xDrive with the Milltek Large-bore Downpipe and De-cat SSXTY119. This Milltek downpipe decat is engineered for maximum gas flow and rapid turbo spool, delivering sharper throttle response, stronger mid-range and a more aggressive, motorsport-inspired exhaust note when combined with a Stage 2 ECU remap. Designed to fit both Milltek Sport cat back systems and the factory OE cat back exhaust, it is the go-to BMW M240i downpipe upgrade for OPF GPF models.
Every Milltek system is designed, developed and hand-finished in the UK by time-served craftsmen. Constructed from aerospace-grade type 304, non-magnetic stainless steel, it resists discolouration and offers outstanding longevity across the entire assembly including pipework, silencers and associated hardware. Mandrel bending maintains a constant radius throughout, ensuring optimised gas flow. Bore sizes are carefully increased over stock for ultimate performance without sacrificing drivability. Milltek exhaust systems undergo comprehensive acoustic development to deliver a sporty, crisp tone without intrusive NVH, drone or cabin resonance.
Why choose this Milltek M240i G42 downpipe decat
- Part number: SSXTY119
- Fitment: BMW M240i Coupé G42 xDrive OPF GPF models only, 2022 onwards
- Requires Stage 2 ECU remap for correct running and to realise full performance gains
- Fits to Milltek Sport and OE cat back systems for flexible upgrade paths
- Large-bore, mandrel-bent T304 stainless steel for maximum durability and flow
- Improved turbo spool and throttle response on the B58 3.0 turbo engine
- Sporty, refined sound developed to minimise drone while enhancing character
- UK made by Milltek Sport with proven quality and finish
Built for performance on the BMW M240i G42 B58
This Milltek downpipe de-cat for the BMW M240i G42 xDrive is a proven performance exhaust upgrade that reduces back pressure and frees up flow ahead of the OPF GPF. It is the perfect foundation for Stage 2 tuning on the B58 engine and pairs seamlessly with either a Milltek Sport cat back or the standard OE cat back. If you are searching for BMW M240i downpipe, G42 downpipe decat, B58 de-cat pipe, M240i OPF GPF downpipe or Milltek M240i exhaust upgrade, this is the part enthusiasts choose.
Nforcd feedback and customer results
We have supplied and installed this Milltek M240i G42 downpipe for many customers, and feedback has been consistently excellent. Owners report quicker spool, stronger mid-range pull and a deeper, more engaging exhaust tone when paired with an appropriate Stage 2 ECU map.
Fitting and support
Professional installation is recommended. Nforcd offers fitting at our Warwickshire workshop and can advise on the ideal supporting hardware and software for your goals. For a fitting quote or product advice, contact Sales@nforcd.com.
Important notes
- De-cat downpipe removes the catalytic converter. For off-road and track use only. Not road legal in many regions.
- Stage 2 ECU remap required. Running this component without the correct software is not recommended.
- OPF GPF models only. Check your vehicle specification before ordering.
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