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Transform the sound and response of your BMW 330i with a simple under‑bonnet upgrade

Looking to free up the exhaust on your B48-powered 3 Series without touching the factory map or wiring loom? This LEIB module is a proven, plug-in solution that enables removal of the petrol particulate filter while keeping the car happy on the dash and with diagnostics. No coding. No remap. No cutting. Fully reversible.

Why enthusiasts choose this LEIB module

• Bypass the petrol particulate filter with the ECU remaining untouched
• No warning lights or fault codes during normal operation
• OEM-style connectors for a clean, factory-fit install
• Installs under the bonnet in about an hour and can be returned to stock at any time
• Remains transparent to dealer-level diagnostics

We have installed this on multiple B48 platforms and the feedback is unanimous – crisper exhaust tone, straightforward fitment and dependable day-to-day performance. Customers appreciate the neat harness and the fact it can be removed without trace.

Perfect for

• BMW 3 Series G20 Saloon 330i and 330ix xDrive 2019 onwards
• BMW 3 Series G21 Touring 330i and 330ix xDrive 2019 onwards

Key features at a glance

• No software flashing required
• Stock ECU calibration retained
• Factory-style harness and connectors
• Clean, reversible installation under the bonnet
• No splicing or soldering

What owners search for

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Installation and fitting

Professional fitting recommended. MJ Modifications in Warwickshire offers installation, set-up and advice for BMW G20 and G21 3 Series. To request a fitting quote, email info@mjmodifications.co.uk.

Compatibility check before dispatch

We confirm fitment against your vehicle details prior to shipping. Provide your UK registration or the last 7 of your VIN at checkout and we will verify compatibility.

Notes

• Pressure sensors pictured in some images are not part of this module
• Designed for vehicles equipped with the B48 engine

Part number

LEIB PN: 1259212173