Remus Valved Cat-Back Exhaust for BMW 4 Series G22 M440i xDrive (2019+) B58B30B 3.0 | Quad 84mm Carbon Fibre Tailpipes | OE Valve Control, Switchable Sports Back Box/Rear Silencer | Stainless Performance Upgrade

Remus performance exhaust upgrade for BMW G22 M440i xDrive B58 3.0 from 2019

Transform your BMW with a premium Remus valved rear system featuring quad 84 mm carbon-finished outlets. This is the go-to sports exhaust for drivers who want a deeper, richer tone on throttle and a refined note for daily use, all while keeping the factory flap control for effortless switchable volume. We have installed this setup for customers and the feedback has been superb on sound quality, craftsmanship and fit.

Why choose this Remus system

• Retains factory valve electronics for on-demand loud or quiet operation
• Quad carbon-tip finish for an aggressive, OEM-plus look
• Flow-optimised pipework for reduced restriction and improved response
• Full stainless construction with a bead-blasted finish for durability
• Lighter than stock for a subtle weight saving
• Precision fitment and beautiful welds, crafted in Austria

How it sounds

Cold starts are purposeful, cruising is civil with valves closed, and with the flaps open the B58 straight-six delivers a bold motorsport tone without excessive drone. Exactly what M440i owners want from a high-end performance exhaust.

Compatibility and important notes

• Vehicle: BMW 4 Series G22 M440i xDrive 3.0 B58, 2019 onwards
• Original system requires cutting during installation
• Only suitable with M Sport specification and when used with the BMW M340i G20 OE rear diffuser, BMW part number 51 12 8 069 391
• This setup removes the GPF. An engine management light may appear and will require mapping out

Part number

085020 1000 + 085020 0000 + 085020 1500 + 0046 83C

Professional fitting

For installation, we recommend our in-house team at MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk

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