Remus Valved Axle-Back Exhaust Rear Silencer/Muffler for BMW 5 Series G30 G31 540i xDrive (2017-) B58 - Quad 4x102mm Straight-Cut Chrome Tips - OE Valve Control - Performance Back Box / Sport Exhaust Upgrade - Stainless Steel, Plug-and-Play UK

Unlock a richer, more dynamic soundtrack for your BMW with this Remus valved rear section. Designed for the BMW 5 Series G30 saloon and G31 touring fitted with the 3.0 B58 straight-six 540i xDrive from 2017 onward, this premium rear back box transforms both tone and presence while remaining fully compatible with the car’s factory flap control. Expect a deep, motorsport-inspired note when you want it and a refined, civilised drive when you don’t.

Built by Remus in Austria, this precision-made rear muffler assembly delivers high-quality construction, excellent durability and a beautifully finished appearance. The quad 102 mm polished chrome outlets give a purposeful OEM-plus look, with straight-cut styling that fills the bumper perfectly.

• Valved rear section that works with the car’s original actuator system for true sound-on-demand
• Free-flow design for reduced restriction and improved exhaust gas flow
• Stainless steel construction with a bead-blasted style finish for long-term corrosion resistance
• Weight savings versus the standard silencer for a sharper, more responsive feel
• Hand-crafted build quality from Remus, engineered for a direct-fit installation
• Quad 102 mm chrome tips, straight-cut design for a clean, aggressive appearance

We’ve installed this system for multiple customers and run it on our own builds. Feedback is consistently positive: deeper tone, more character, and a premium look that complements the 5 Series perfectly. If you’re searching for BMW 540i exhaust upgrade, G30 G31 valved back box, B58 performance exhaust, quad tip muffler, or plug-and-play BMW sport exhaust, this is the solution enthusiasts choose.

Fitment

• BMW 5 Series G30 saloon and G31 touring
• 540i xDrive, 250 kW B58B30A, 2017 onwards

Important note

Requires the original BMW G30 550i rear diffuser to fit correctly. BMW OEM part number: 51 12 8 067 763.

Part number

088017 1500+0046 70SG

Why buy from MJ Modifications

• Tried-and-tested on UK roads and track days
• Happy customers who love the refined cruising and assertive tone under load
• Professional installation available in Warwickshire

Want it fitted? Book expert installation with MJ Modifications in Warwickshire. Email us for a fitting quote: info@mjmodifications.co.uk.

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