Performance M
Remus Valved/Active Axle-Back Exhaust for BMW F90 M5 Competition (2018+, OPF/GPF) – Rear Silencer/Back Box Mufflers with OE Valve Control, Quad 4x102mm Straight-Cut Chrome Tips – Performance Sports Exhaust for S63B44B
Remus Valved/Active Axle-Back Exhaust for BMW F90 M5 Competition (2018+, OPF/GPF) – Rear Silencer/Back Box Mufflers with OE Valve Control, Quad 4x102mm Straight-Cut Chrome Tips – Performance Sports Exhaust for S63B44B
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Remus valved axle-back system for BMW M5 F90 Competition – the ultimate sound and flow upgrade
Transform the character of your BMW M5 F90 Competition with this Remus valve-controlled rear section. Expect a deeper, more aggressive tone under load with refined manners at cruising speed thanks to the integrated flap technology that retains factory valve operation. Precision-built in Austria from 100 percent stainless steel with a shot-blasted finish, this premium rear box pair delivers improved gas flow, reduced backpressure and a noticeable weight saving over the stock set-up.
Our team has fitted this system on customer cars and on our own demonstrators. Feedback has been excellent for both sound quality and fitment. If you want a motorsport-inspired soundtrack with everyday usability, this is the one.
Why choose this exhaust upgrade
- Authentic Remus performance tone – aggressive under throttle, civil on the motorway
- Valve control retained via the car’s original actuators for seamless drive mode integration
- High-flow design for reduced restriction and sharper throttle response
- Lightweight construction for improved dynamics
- Shot-blasted, corrosion-resistant 100 percent stainless steel for long-term durability
- Handmade in Austria with superb weld quality and exact fit
- Quad 102 mm straight-cut chrome outlets for a purposeful OEM-plus look
Compatibility
BMW M5 F90 Competition with S63B44B engine, 2018 onwards. Only suitable for vehicles equipped with GPF or OPF.
Technical details
- Configuration: left and right rear silencers with integrated valve flaps
- Pipework: 84 mm
- Tip style: quad 102 mm, straight-cut, chrome
- Material: stainless steel, shot-blasted finish
- Part number: 089618 0500LR+0446 70SG
What you can expect
- Stronger exhaust note and enhanced presence without excessive cabin boom
- Optimised flow and lower backpressure
- Direct replacement rear section with precise alignment of tips
Popular search terms
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Professional fitting
We recommend installation by specialists. MJ Modifications offers expert fitting and alignment in Warwickshire. To request a quote or book an appointment, email info@mjmodifications.co.uk.
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