Remus Axle-Back Rear Box / Backbox Muffler for BMW 5 Series 520d F10/F11 Saloon/Touring (2010+) – Quad 84mm Carbon Fibre Tailpipes/Tips – Stainless Steel Performance Exhaust, ECE Approved – Not for OPF/GPF or AdBlue Models – Left & Right Silencers

Quad 84 mm Carbon Fibre Tailpipe Axle-Back for BMW 520d F10 F11, Stainless Steel, ECE Approved, Non GPF and Non AdBlue

Give your BMW 5 Series 520d the soundtrack and styling it deserves with this premium twin rear box upgrade featuring four 84 mm straight cut outlets with carbon fibre sleeves. Crafted in stainless steel by Austrian exhaust specialists, this left and right axle-back transforms the rear end with a purposeful quad exit look and delivers a richer, sportier diesel tone with reduced back pressure and no unpleasant cabin boom.

Why this upgrade stands out

• Sportier sound for the 2.0 diesel that is refined on the motorway and assertive on throttle
• Low restriction internals to improve exhaust gas flow and throttle response
• Shot blasted stainless construction for longevity and a premium OEM plus appearance
• Lightweight design for efficiency and balance
• Precision built in Austria for exact fit on F10 Saloon and F11 Touring platforms
• ECE homologated for road use where applicable

Tailpipe finish

Four straight cut tips, 84 mm diameter, with carbon fibre outer sleeves for a motorsport inspired aesthetic that complements factory and aftermarket styling alike.

Vehicle compatibility

• Make, BMW
• Model, 5 Series
• Chassis, F10 Saloon and F11 Touring
• Engine, 520d diesel, 160 kW
• Year, 2010 onwards

Fitment notes

• For vehicles without a gasoline particulate filter, GPF
• Not suitable for cars equipped with an AdBlue tank

Real world results

We have installed this system for customers and on our own builds. Feedback has been consistently positive, praising the deep tone, quality welds and perfect alignment of the quad outlets. It looks factory fresh, sounds premium and elevates the driving experience.

Professional installation

For fitting, book with MJ Modifications in Warwickshire. Our team has extensive experience with BMW F10 and F11 exhaust upgrades. Request a fitting quote at info@mjmodifications.co.uk.

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