SLN B58 OPF Ceramic-Coated Sports Cat Downpipe – BMW M240i, M340i, M440i & 540i
DESCRIPTION
This SLN ceramic-coated sports cat downpipe is designed for the later Gen 2 / OPF BMW B58 exhaust interface. It uses a high-flow sports catalyst to improve exhaust flow while retaining a catalytic downpipe section, and the ceramic coating reduces radiated heat around the engine bay.
Key Features
- Ceramic-coated stainless-steel construction.
- High-flow sports catalyst for the later B58/OPF interface.
- Designed around the approved two-bolt downstream connection.
- Direct replacement for the compatible factory downpipe section.
UK Vehicle Fitment
- BMW G20 M340i xDrive Saloon – 2019-on.
- BMW G21 M340i xDrive Touring – 2019-on.
- BMW G22 M440i xDrive Coupé – 2020-on.
- BMW G23 M440i xDrive Convertible – 2021-on.
- BMW G42 M240i xDrive Coupé – 2022-on.
- BMW G30 540i / 540i xDrive – later B58/OPF downpipe interface.
Fitment check: Confirm the later B58/OPF turbo-to-downpipe and downpipe-to-exhaust interface before ordering; model year alone is not sufficient.
DISCLAIMER
Where applicable, the use of de-cats, sports cats and removing OPF/GPF systems is for off-road/motorsport use only. Using these parts may prevent your vehicle from passing an MOT test. Only EC type-approved components are legal and fit for road use.
SHIPPING & WARRANTY
Free UK shipping on all orders. In-stock orders are dispatched Monday–Friday. Please refer to the live dispatch estimate above for the current estimated dispatch day. Tracking is provided once your order is dispatched.
Warranty coverage varies by product and manufacturer. Please contact us if you need confirmation of warranty coverage before ordering. Your statutory rights are unaffected.