Remus Axle-Back Exhaust Rear Silencer/Back Box, 84mm Carbon Fibre Tips – BMW 1 Series F20/F21 114i 116i 118i 1.6 Turbo N13 (2011+) Twin Exit Stainless Performance Muffler Upgrade

Transform the sound and style of your BMW 1 Series with a premium rear section upgrade

Give your F20 or F21 1.6 turbo petrol hatch the soundtrack it deserves with this Austrian-built rear silencer setup featuring stunning 84 mm carbon fibre tailpieces. Designed for the BMW 114i, 116i and 118i running the N13B16 engine from 2011 onwards, this twin exit L and R system delivers a harder-edged motorsport note, sharper throttle feel and a serious visual upgrade thanks to those angled carbon-ring tips.

Part numbers: 084111 1583C and 084111 1583CS

Why enthusiasts choose this upgrade

• Hard-hitting performance tone with a purposeful growl
• Shot-blasted 100 percent stainless construction for durability and corrosion resistance
• Reduced backpressure for improved response and up to 5 percent power increase
• Lightweight build for a useful weight saving over stock
• Precision fit for factory-like alignment and tip positioning
• Hand finished in Austria with exceptional attention to detail
• 24 month warranty for peace of mind

Standout styling

Twin 84 mm Carbon Race tailpipes with angled carbon surrounds fill the valance beautifully. The dual exit layout creates a balanced, aggressive rear end look on the 1 Series, elevating the car beyond a simple back box swap and into genuine performance-car territory.

Technical details

• OEM pipe diameter: 52 mm
• System pipe diameter: 65 mm
• Configuration: axle-back L and R twin exit with carbon-finish tailpipes

Compatibility and fitment notes

• Fits BMW 1 Series F20 and F21 114i, 116i, 118i with the N13B16 1.6 turbo engine, 2011 onwards
• Suits both standard rear bumper and M Sport valance
• Cutting required at the manufacturer-marked position on the original system
• Right-hand skirt outlet must be trimmed using the supplied template
• Without homologation

Real-world results

We have installed this rear section on customer cars and the feedback has been superb. Owners love the deeper, more assertive tone at idle and the crisp, sporty note under load, along with the premium look of the carbon fibre tips. It is one of the best-value sound and style upgrades for the F20 and F21 1.6T platform.

Great for searchers looking for

BMW 1 Series F20 exhaust upgrade, F21 rear silencer, back box for 116i, performance muffler for 118i N13, twin exit carbon fibre tailpipes, dual outlet rear section, 1.6 turbo petrol exhaust, BMW 114i backbox, stainless steel performance exhaust, carbon tip rear exhaust for BMW hatchback.

Professional installation

Want it fitted properly first time. Book installation with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Elevate your 1 Series with a deeper voice, sleeker rear-end aesthetics and high-quality stainless engineering. This is the rear section upgrade your F20 or F21 N13 deserves.