Evolution Racewerks ER O2/Oxygen Sensor Bung & Lambda Boss – Wideband AFR/UEGO Port/Adapter for BMW/MINI B46 Downpipe/Front Pipe (X1 F48, X2 F39, MINI Cooper S F55 F56) with Blanking Plug | Exhaust O2 Boss | BM-EXH021-02BUNG

Evolution Racewerks BMW MINI B46 Exhaust Lambda Boss with Blanking Plug

Unlock reliable air fuel ratio monitoring for tuning and data logging with this genuine Evolution Racewerks lambda boss. It adds an extra oxygen probe port on B46-powered BMW and MINI platforms, making it easy to run a wideband controller and AFR gauge without disturbing the factory setup. Supplied with a pre-installed blanking plug, you can fit the port now and add your sensor when you are ready.

We have installed this Evolution Racewerks part on our own builds and customer cars and the feedback has been consistently positive. Fit and finish are spot on, the threading is precise and the seal is secure, which makes it a tidy, professional solution for anyone mapping or monitoring a B46 engine on the road or at the track.

Key benefits

• Creates a secondary oxygen sensor location for AFR monitoring and datalogging
• Pre-fitted blanking screw allows you to run the car without a sensor until needed
• Ideal for ECU calibration, custom mapping, dyno sessions, diagnostics and track days
• Designed by Evolution Racewerks for seamless integration with ER B46 front pipes

Vehicle applications

• BMW X1 F48 with B46 engine
• BMW X2 F39 with B46 engine
• MINI Cooper S F55 and F56 with B46 engine

What you get

• Evolution Racewerks lambda boss with pre-installed blanking plug

Manufacturer

Evolution Racewerks

Part number

BM-EXH021-02BUNG

Fitting and support

Professional installation recommended. For expert fitting and advice, choose MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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