LEIB BMW S55/S58/S63 OPF/GPF & CAT Delete (Decat) Kit with CAN Module + OPF Pressure Sensors - Plug & Play - M2 Competition, M3, M4, M5 - F80 F82 F83 F87 G80 G82 G83 F90 - Track/Off-Road Use Only

LEIB S55 S58 S63 OPF and Catalyst Removal Kit with CANbus Control and Pressure Sensors - Plug and Play for BMW M2C M3 M4 M5

Unlock your BMW M car’s true voice and reduce exhaust back pressure with the LEIB OPF and catalyst removal solution. This catless and particulate filter bypass package is a genuine plug in system designed for S55, S58 and S63 powered models. It enables physical removal of the catalytic converter and the petrol particulates filter while keeping the factory ECU calibration in place. Ideal for track and off-road builds that want a louder, crisper exhaust note and cleaner flow without a remap.

The LEIB module communicates via CANbus and works together with the included new OPF pressure sensors to prevent EML and warning messages when the hardware has been removed. No coding, no splicing, no cutting. Just OEM-style connectors, a neat harness and reversible installation that can be returned to standard at any time.

We have installed this kit on customer cars at MJ Modifications and the feedback has been excellent. Customers love the fault-free operation, factory-level fit and the way the car sounds and breathes on circuit. If you are searching for a BMW catless setup, OPF bypass, GPF remover, decat module, CANbus OPF emulator or CEL-free downpipe conversion for S55, S58 or S63 engines, this is the proven choice.

Key reasons to choose this package

• Catless and particulate filter bypass while retaining stock engine software - no remap required
• CANbus based controller with dedicated looms for a clean, plug in install
• Includes fresh OPF pressure sensors for correct system communication and no dash lights when used as intended
• No soldering and no cutting - tidy and fully reversible
• Typically around 60 minutes to fit in the engine bay using hand tools
• Improved exhaust gas flow and a more authentic BMW M soundtrack for track use

Vehicle applications

Built for BMW M models with the twin turbo S55, S58 and S63 engines:

• BMW M2 Competition F87 S55 2018 to 2022
• BMW M2 CS F87 S55 2020 to 2022
• BMW M3 F80 S55 2014 to 2020 including Competition
• BMW M4 F82 F83 S55 2014 to 2020 including Competition
• BMW M3 G80 S58 2021 onward including Competition
• BMW M4 G82 G83 S58 2021 onward including Competition
• BMW M5 F90 S63 2017 onward including Competition and CS

What you receive

• LEIB OPF and catalyst removal controller for S55, S58 and S63
• New OPF pressure sensors
• Plug in wiring looms with OEM-style connectors
• Access to illustrated online install instructions

Fitting and support

Installation is straightforward in the engine bay and normally takes about 60 minutes. No coding, no cutting, no soldering.

Prefer professional installation We offer fitting at MJ Modifications in Warwickshire - request a quote via info@mjmodifications.co.uk.

Download the installation guide

Important information

• Designed to operate with stock ECU while preventing fault codes and EML
• For off-road and track use only - check local laws before purchase and installation

Fitment confirmation

We verify compatibility before dispatch. Add your UK registration or the last 7 digits of your VIN at checkout and we will confirm suitability for your specific BMW M model.

Part number

S2V2-OPF-CAT

Manufactured by

LEIB

Search terms customers use

BMW catless downpipe kit, BMW OPF bypass, BMW GPF remover, decat module for M2C M3 M4 M5, CEL delete no EML, CANbus OPF emulator, S55 catless conversion, S58 particulate filter delete, S63 catalyst removal, F80 F82 F83 F87 G80 G82 G83 F90 exhaust upgrade, plug in harness, reversible install, track car exhaust, UK BMW tuning parts, Warwickshire BMW specialist.