Remus Performance Cat-Back (Catback) Exhaust Non-Resonated, Valved (OE Valve Control), Quad 102mm Straight Cut Chrome Tips – BMW 5 Series G30/G31 540i xDrive B58B30A 2017+ Stainless Sports System

BMW 5 Series G30 G31 540i xDrive Performance Valved Sports System with Quad 102 mm Chrome Tips

Looking for a serious sound and flow upgrade for your B58-powered 540i xDrive? This premium Remus performance system is a direct-fit stainless steel upgrade that retains the factory electronic flap control, delivers a deeper motorsport tone, and showcases four 102 mm straight cut chrome outlets for a purposeful finish. Built in Austria, engineered for precision fitment, and designed for enthusiasts who want more character, more flow and less weight from their exhaust.

Why choose this upgrade

• Aggressive racing soundtrack with a refined tone when cruising
• Reduced back pressure for improved gas flow and response
• 100% stainless steel with a shot blasted finish for durability
• Lightweight construction compared with the factory system
• Perfect fitment with OEM hangers and connectors
• Retains factory electronic flap operation via the original control
• Four 102 mm straight cut chrome tailpipes for a premium look
• Handmade in Austria to exceptionally high standards

Fitment

For BMW 5 Series G30 and G31 540i xDrive models equipped with the B58B30A 250 kW engine, 2017 onward.

Important: the original BMW G30 550i rear diffuser must be used for correct tip spacing and finish. BMW part number: 51 12 8 067 763.

Part Number

088017 0000 + 088017 1500 + 0046 70SG

Real-world results

We have installed this setup for customers and on our own cars. Feedback has been consistently positive, praising the stronger tone under load, quality materials, factory-style valve integration and the clean quad-tip aesthetic.

Ideal search terms

BMW 540i exhaust upgrade, G30 G31 sports exhaust, B58 performance exhaust, valved quad exhaust, stainless rear system, BMW 5 Series 540i xDrive exhaust, quad 102 mm chrome tips, UK BMW tuning parts, Austrian made exhaust, plug and play BMW exhaust.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and availability.