Scorpion 4in (100mm) Turbo Downpipe/Front Pipe for BMW M140i/M240i B58 OPF/GPF (F20 F21 F22 F23, 2018-2019) - High-Flow Sports Cat or Decat | Stainless Turbo Outlet/Elbow | Fits OEM & Scorpion Cat-Backs | Stage 2, xDrive Compatible | BMW 1 & 2 Series

High-flow turbo outlet for BMW 1 Series M140i and 2 Series M240i B58 OPF models

Unlock serious gains in response, sound and airflow with this Scorpion performance front pipe for the B58-powered M140i and M240i particulate filter models. Available with a high-flow sports catalyst or a track-duty cat delete, this large-bore 100 mm (4 inch) stainless assembly replaces the restrictive factory turbo outlet to reduce backpressure, sharpen turbo spool and unleash that addictive straight-six character.

We have installed this upgrade on customer cars and our own demonstrators. Fitment is spot on, the finish is excellent and the improvement in drivability once mapped is exactly what B58 owners are looking for. Customers consistently comment on the crisper throttle feel, stronger mid-range and the richer exhaust tone.

Why choose this upgrade

• Large 100 mm (4 inch) bore for maximum gas flow and reduced turbo backpressure
• Choose high-flow sports catalyst for road-friendly refinement or a decat option for closed-circuit use
• Direct connection to factory system or Scorpion cat-back exhausts
• Stainless steel construction for durability and heat resistance
• Meaningful weight saving versus stock: OEM 4.8 kg, Scorpion 3.1 kg, 1.7 kg reduction
• Ideal hardware for Stage 2 tuning on the B58 platform when paired with a suitable ECU calibration

Compatibility

• BMW M140i F20 and F21 with OPF GPF 2018 to 2019
• BMW M240i F22 and F23 including xDrive with OPF GPF 2018 to 2019
• Designed for the B58 engine family
• Fits to original rear section or Scorpion cat-back systems

What you can expect

• Improved turbo spool and stronger mid-range pull once mapped
• Deeper, sportier soundtrack with the sports cat and a more aggressive tone with the decat option
• Smoother, freer-revving feel thanks to the big-bore turbo outlet

Important information

• For closed-circuit and off-road use where applicable. Check local regulations
• Engine management light may illuminate without appropriate software changes
• Stage 2 ECU remap recommended to maximise performance and drivability

Professional fitting and support

We highly recommend professional installation. MJ Modifications in Warwickshire offer supply and fitting for BMW 1 Series and 2 Series B58 upgrades. Request a fitting quote at info@mjmodifications.co.uk.

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