Remus Non-Resonated Cat back System 2018+ For BMW 4 Series M4 Competition

High-Flow Valved Sports Exhaust Upgrade for BMW M4 Competition F82 F83

Give your M4 Competition the soundtrack and presence it deserves with this Austrian-engineered, quad-exit performance exhaust. Handcrafted from shot-blasted stainless steel for durability and a premium finish, this free-flowing rear section delivers a harder-edged motorsport tone, sharper throttle response and reduced backpressure, all while retaining full integration with the factory valve control. We run this system on customer cars and the feedback has been outstanding for sound quality, fit and finish.

Compatible Vehicles

• BMW M4 Competition F82 Coupe and F83 Convertible
• S55 twin-turbo straight-six
• LCI models, model years 2016 to 2018
• Only suitable for cars without GPF or OPF

Why Enthusiasts Choose This System

• Hard-edged, motorsport-inspired tone with a deeper idle and crisp top-end
• Free-flow design for performance gains thanks to lower backpressure
• Lightweight construction to help reduce mass over the rear axle
• Precision fitment for the F8x platform with factory-style mounting points
• Integrated valves using the original BMW electronics and controls
• 100 percent stainless steel with a shot-blasted surface for longevity
• Handmade in Austria with EEC homologation for road use where applicable

Tailpipe Options — Quad 102 mm

• Angled, straight-cut, chrome finish
• Angled, rolled-edge, chrome finish
• Angled carbon sleeves with titanium internal cores

Sound and Driveability

With valves closed you get a refined cruising note for everyday driving. Open the valves and the S55 comes alive with a sharper bark, quicker rev pick-up and a proper performance-car character. The system is designed to amplify the twin-turbo six without harshness, making it ideal for spirited road use and track days.

Fitment and Installation

Professional fitting is recommended. MJ Modifications in Warwickshire can supply and install this exhaust, integrate the valve control and align the quad tips perfectly. Request a fitting quote at info@mjmodifications.co.uk.

Tech Highlights

• Dual-exit left and right rear section with integrated valve housings
• Quad 102 mm tailpipes to fill the diffuser aperture and enhance the rear look
• Direct compatibility with BMW OE valve actuation
• EEC homologation

Notes

• For pre-GPF cars only
• Check your model year and specification before ordering

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