Remus Valved Rear Silencer Left & Right, Twin 84mm Tailpipes, Stainless Steel - BMW 4 Series 440i F32/F36 LCI 2015-2018 (240 kW, No GPF) EEC Approved Performance Exhaust Back Box

Valve‑controlled rear section with twin 84 mm outlets for BMW 440i F32 F36 LCI 2015 to 2018

Transform the character of your B58‑powered 4 Series with this premium Remus rear section. Crafted from high grade stainless steel and hand finished in Austria, it replaces the factory rear boxes and keeps the original electronic valve control for a civilised cruise and a richer, sportier tone when you want it. ECE approved for road use, it delivers a sharper throttle response thanks to a low restriction design and looks spot on with dual 84 mm tailpipe options.

Why enthusiasts choose this system

• Switchable sound via OE valve actuation for daily usability and weekend fun
• TIG welded stainless construction, shot blasted for durability
• Reduced back pressure for improved engine breathing and response
• Precision fit on the facelift F32 coupe and F36 Gran Coupe
• ECE homologated and hand built in Austria
• Choice of 84 mm tip finishes to match your build

What is included

Left and right rear silencer assemblies with integrated valves connecting to the factory control system, supplied with twin 84 mm tailpipe ends.

Tailpipe finishes

• Straight 84 mm with carbon insert
• 84 mm Carbon Race, angled with carbon ring
• 84 mm Black Chrome, straight with carbon insert
• 84 mm carbon, angled with titanium internals
• 84 mm angled, rolled edge, chrome plated

Vehicle compatibility

• BMW 4 Series 440i
• Chassis: F32 coupe and F36 Gran Coupe, LCI
• Engine: B58 3.0 turbo, 240 kW
• Model years: 2015 to 2018

Note: For cars without a petrol particulate filter.

Real‑world results

We have installed this axle‑back on customer 440i models and the feedback has been superb. Expect a deeper, more refined tone in Comfort and a purposeful growl in Sport while cruising remains drone‑free. Fit and finish are excellent, and the OE valve integration is seamless.

Installation and support

Professional fitting recommended. MJ Modifications in Warwickshire can install this system and advise on tip options. For a fitting quote, email info@mjmodifications.co.uk.

Search terms to help you find the right upgrade

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