Perfco Performance GPF/OPF Delete Emulator Kit - Plug & Play CEL/Fault Canceller for BMW B48/B58, MINI 4-Cyl & Toyota GR Supra B58 - Fits M140i, M240i, 340i, 440i, 540i, M340i, X3 M40i - Single or Dual Cable (Off-Road Use)

Perfco Performance OPF GP Filter Emulator Harness is the simple, plug-in solution that prevents engine management lights and error messages after removing or relocating the petrol particulate filter on BMW B48 B58, MINI 2.0T 4‑cylinder and Toyota GR Supra B58 platforms. If you are fitting a sports exhaust, downpipe or cat-back and want a clean dashboard without nuisance warnings, this OPF bypass module keeps things fault free while you enjoy the sound and flow you built the car for.

Choose the single-lead loom for vehicles with one particulate filter canister, or the twin-lead version for cars with a pair of filters. The harness connects at the factory connectors for a tidy, reversible install. No remap, no reflash, no cutting or soldering. Just plug in and drive.

Why enthusiasts choose this module

• Stops EML and warning pop-ups related to the petrol particulate filter after exhaust changes.
• True plug-in harness using OE-style connectors for a neat, reversible install.
• Available in single-lead and twin-lead variants to match your vehicle’s OPF layout.
• Ideal when fitting a performance exhaust, sports downpipe or freer-flowing cat-back system.
• In-house tested by MJ Modifications and consistently rated by customers for reliability and ease of fitment.

Note: sensor not included.

Vehicle applications

Built for petrol particulate filter equipped BMW, MINI and Toyota models using the B48 and B58 engines, including but not limited to:

• BMW M135i F40 B48
• BMW M140i F20 F21 B58
• BMW M235i F44 B48
• BMW M240i F22 F23 B58
• BMW 330i F30 F31 F34 B48
• BMW 330i G20 G21 B48
• BMW 340i F30 F31 F34 B58
• BMW M340i G20 G21 B58
• BMW 430i F32 F33 F36 B48
• BMW 440i F32 F33 F36 B58
• BMW 530i G30 G31 B48
• BMW 540i G30 G31 B58
• BMW 630i G32 B48
• BMW 640i G32 B58
• BMW 730i G11 G12 B48
• BMW 740i G11 G12 B58
• BMW 840i G14 G15 G16 B58
• BMW X3 M40i G01 B58
• BMW X3 xDrive 30i G01 B48
• BMW X4 M40i G02 B58
• BMW X4 xDrive 30i G02 B48
• BMW X5 xDrive 40i G05 B58
• BMW X6 xDrive 40i G06 B58
• BMW X7 xDrive 40i G07 B58
• BMW Z4 M40i G29 B58
• BMW Z4 sDrive 30i G29 B48
• MINI 4‑cylinder petrol models
• Toyota GR Supra 3.0 B58

Running an S55 or S58 engine. See the dedicated Perfco Performance cancellation kits for those platforms.

Choosing the right variant

Single-lead suits vehicles with one petrol particulate filter. Twin-lead suits vehicles with two filter canisters. If you are unsure which your car has, get in touch and we will confirm the correct option for your chassis.

Professional installation and support

DIY friendly thanks to the plug-in design. Prefer expert fitting. MJ Modifications in Warwickshire can install this OPF emulator harness and provide guidance on exhaust upgrades. Request a quote at info@mjmodifications.co.uk.

Fitment check before dispatch

We verify compatibility prior to shipping. Add your UK registration or the last 7 of your VIN at checkout so we can confirm it matches your exact BMW, MINI or Supra.

Manufactured by

Perfco Performance

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For motorsport and off-road use only where permitted. Check and comply with local laws regarding emissions equipment.