Remus Valved Axle-Back/GPF-Back Exhaust for BMW M4 G82 Competition (2021+) – Stainless Performance Rear Muffler with OE Valve Control, Quad 102mm Angled Straight-Cut Chrome Tips – S58 OPF Compatible Racing System

Valved rear exhaust upgrade for BMW M4 G82 Competition

Unlock a proper motorsport soundtrack and sharpen throttle response on your BMW M4 G82 with this Austrian hand-crafted valved rear section. Engineered for the S58-powered M4 Competition, it delivers a commanding tone when the flaps are open and a refined note when closed, all while reducing restriction and shedding weight compared to the bulky factory silencer. The quad 102 mm angled, mirror-chrome tailpipes complete the aggressive look at the back of your G82.

Part Number: 081021 1300+081021 1400+081021 1510+0046 70SG

Why enthusiasts choose this performance rear section

• Deep, motorsport-inspired sound with valves open and civil cruising with valves closed
• Retains factory flap control via the stock electronics for seamless mode changes
• Full stainless steel construction with a durable bead-blasted style finish
• Reduced back pressure for improved flow and responsive driving feel
• Lightweight design for meaningful weight savings over the standard rear box
• Precision fitment designed to mate to OEM pipework
• Handcrafted in Austria with premium build quality
• Quad 102 mm angled, polished chrome tips for a bold, performance-led aesthetic

Fitment and notes

Designed for BMW M4 G82 Competition with the S58B30A engine, 2021 onwards. Installation requires trimming the original exhaust pipework. Professional fitting is recommended.

Installation service

For hassle-free fitting, book with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Trusted by owners

We have fitted this upgrade for multiple customers and run it ourselves. Feedback has been consistently positive for sound quality, fitment and finish.

Search-friendly terms

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