Remus Valved Axle-Back Rear Silencer/Back Box (L/R) with OE Valve Control, 2x 84mm Tailpipes BMW 3 Series 340i xDrive (340ix) F30/F31 LCI 2015+, 240 kW Stainless Steel, EEC Approved No GPF

Remus switchable rear section for BMW 340i xDrive F30 and F31 LCI with twin 84 mm outlets

Transform the character of your BMW 3 Series 340i xDrive with this premium Remus rear section. This valve‑actuated backbox keeps full use of the factory flap motors for seamless control through your driving modes. Expect a deeper, motorsport‑inspired tone when you want it and refined cruising when you do not. Crafted from high grade stainless steel with a shot‑blasted finish, it offers excellent flow, reduced backpressure and superb fitment on facelift F30 saloon and F31 Touring models from 2015 onward.

Handmade in Austria and EEC homologated, this performance rear silencer delivers quality you can see and hear. At MJ Modifications we have installed this system for many 340i owners and feedback has been outstanding. Customers love the precision fit, OE‑level integration and the addictive sound that stays civil on the motorway yet comes alive in Sport and Sport Plus.

Why choose this Remus system

• Switchable sound using your original electronics for true plug‑and‑play control
• Deeper, richer tone with minimal drone and a clean, aggressive note under load
• Stainless construction with shot‑blasted surface for durability and a premium look
• Optimised gas flow for reduced backpressure and improved throttle response
• Lightweight rear section compared with stock for a sharper feel
• Precise fitment on F30 and F31 LCI 340i xDrive platforms
• EEC homologation for road use where applicable

Vehicle fitment

• BMW 3 Series F30 saloon and F31 Touring LCI
• 340i xDrive AWD, B58 3.0 petrol
• Power rating: 240 kW
• Model years: 2015 onward

Important: for cars without GPF or OPF only.

Tailpipe finishers - 2 x 84 mm

• Straight with carbon insert
• Carbon Race angled with carbon ring
• Black chrome straight with carbon insert
• Carbon angled with titanium inner

What you can expect

• Factory actuators retained for OE‑style operation
• Quiet in Comfort, assertive in Sport and Sport Plus
• Premium tip options to complement the rear bumper styling
• Austrian engineering and hand‑finished weld quality

Installation and support

Direct bolt‑on to original mounting points and compatible with the standard valve motors. Professional fitting recommended for perfect alignment and valve calibration.

Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

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