Remus Valved Axle-Back Rear Silencer Exhaust for BMW 1 Series M140i (F20/F21 LCI) 2018+ B58 - Stainless Steel, EEC Approved - Fits Non-GPF/OPF Vehicles

Remus switchable rear box for BMW M140i F20 F21 LCI 2018 onwards delivers a sharper soundtrack, premium materials and OE-level integration for B58-powered 1 Series. This flap-controlled rear muffler plugs into the factory valve system for quiet cruising and an addictive growl when you want it. Built from high grade stainless with an E-marked, ECE type-approval, it is a superb sports exhaust upgrade for non-GPF non-OPF cars.

At MJ Modifications we have installed this system on customer M140i models and the feedback has been outstanding. Owners praise the deeper tone, the clean fit and finish, and the way it transforms the driving experience without drone. If you are searching for an M140i rear box, backbox upgrade, rear muffler, flap exhaust, valve-controlled system or performance sound upgrade, this Remus unit is the proven choice.

Why enthusiasts choose this Remus system

• Switchable flap control using the original BMW valve actuator for effortless quiet to sport sound
• Distinctive Remus note on the B58 with reduced restriction for improved response
• Fabricated from stainless steel with a shot-blasted finish for long-term durability
• Lightweight construction to trim mass over the rear axle
• Precision fit for the facelift F20 F21 chassis with M140i powertrain
• Engineered and hand finished in Austria with ECE approval for road use

Tailpipe choices, 2 x 102 mm

• Angled straight-cut chrome outlets, 102 mm
• Carbon fibre outer with titanium inner sleeve, 102 mm

What is included

Left and right rear silencers with integrated valves designed to operate with the BMW factory control. The result is a switchable M140i sports exhaust that sounds purposeful on throttle yet stays civil for daily driving.

Compatibility

• Vehicle: BMW 1 Series M140i
• Chassis: F20 and F21 LCI facelift
• Engine: B58B30
• Power: 250 kW
• Year: 2018+

Important fitment note: for vehicles without a petrol particulate filter. Also referred to as non-GPF or non-OPF. If you are unsure whether your car has a PPF, please contact us.

Search-friendly highlights

BMW M140i rear box upgrade, M140i sports muffler, B58 1 Series exhaust sound, flap-controlled backbox, switchable valve exhaust, E-marked stainless system, performance rear silencer, F20 F21 LCI 2018 M140i sound upgrade, non-OPF M140i exhaust, non-GPF sports rear muffler.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote, lead times and tailpipe advice, email info@mjmodifications.co.uk. We are happy to help you select the ideal configuration for your car.