Configuration
BMW M5 F90 4.4T Valved Exhaust (2018-2023)
Valves
Operated by remote control, paired in our workshop.
Estimated at 0.50 m from the outlet, 45°, 2,000 rpm with a warm engine. Allow ± 2 dB depending on the engine and measuring point. A 3 dB difference is audible in a direct comparison; 10 dB sounds roughly twice as loud.
Configuration guide
Sound intensity with the valves open, on a scale of 0 to 10.
| Configuration | Intensity |
|---|---|
| Decat downpipe + ROG cat-back | 10/10 |
| 100-cell sports catalytic converter + ROG cat-back | 9/10 |
| 200-cell sports catalytic converter + ROG cat-back | 8/10 |
| ROG cat-back only, factory catalytic converter retained | 7/10 |
| Factory exhaust, for comparison | 3/10 |
The BMW M5 F90 exhaust in detail.
The F90 M5 is one of the fastest saloons ever built: a 4.4-litre twin-turbo S63, 600 hp or 625 hp in Competition form, 750 Nm, and switchable all-wheel drive that gives it supercar performance. Built from 2018 to 2023, it could nonetheless pass for a diesel saloon by ear. The preceding F10 M5 and the hybrid G90 M5 have their pages.
The hot-vee layout, with the turbos in the middle of the V, shortens the gas path but also filters out part of the sound; add the particulate filter, silencers sized for a limousine and Active Sound through the speakers, and you get a V8 whose soundtrack partly comes out of the stereo. With the valves open, our cat-back releases a genuine pulse, deep at idle and commanding under load; with the valves closed, the F90 regains the calm of a touring saloon.
No body modification is needed: the system, bent to your VIN, connects with clamps and gaskets in about two hours, and the valves stay under the control of the factory system or the Rog remote.
Under the “Manifold” option, the page sells the S63’s downpipes and their catalytic converters: on a factory map, they bring voice and a slight weight saving, with power only coming with an ECU remap. An F90 used every day stays emissions-controlled with the 200-cell downpipes; the 100-cell ones are accepted or not depending on the vehicle and your country’s rules; the decat version is reserved for track use. The cat-back comes in 304 stainless steel, with a thick bass note, or in titanium, around 40% lighter.
BMW M5 F90 4.4T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicle and chassis code | BMW M5 and M5 Competition F90 saloon |
| Engine | S63, 4.4-litre twin-turbo hot-vee V8, 600 or 625 hp, 750 Nm |
| Years | 2018-2023 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, chrome, gold or purple |
| Valves | Factory valve control if the car has it, otherwise the Rog remote |
| Front section (option) | Downpipes with 200-cell or 100-cell catalytic converters, or decat |
| Fitting | Clamps and gaskets, no welding, about 2 hours |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the BMW M5 F90 4.4T exhaust.
My M5 F90 is a Competition: does it need a different system?
Yes, the page covers both versions from 2018 to 2023; for a 2017 car, excluded by the supplier, send us the VIN and the workshop will check before building.
What is published for an M5 F90 at Stage 2?
720 hp and 780 Nm, for the 600 hp version as well as the Competition, with downpipes and a remap at an approved tuner; the system alone brings the breathing and the voice, without needing a new map.
Does the vehicle inspection of a tuned M5 F90 call for any precautions?
Simply present it as a stock M5: S63 idling behind closed valves, factory catalytic converters or 200-cell downpipes in place; the 100-cell versions are accepted or not depending on the car and the rules in your country, and the decat version is reserved for track use.
Does the F90’s Active Sound keep working?
The system does not touch the electronics; with the valves open, it is simply the real sound of the S63 that comes out of the exhaust, instead of being suggested by the speakers.
Why is the hot-vee S63 so hard to hear?
Because its turbos, housed in the V, already filter the pulses, and the factory system, with a particulate filter and limousine silencers, finishes smothering them.
ROG expert guide
BMW M5 F90: giving the S63 V8 its voice back, the complete exhaust system guide
The M5 F90 is one of the fastest saloons ever built: 600 hp, all-wheel drive that can be switched to rear-wheel drive, supercar performance. And yet, to the ear, it could almost pass for a 530d. The S63 is there,...
In detail
Unsure about your configuration?
Talk to our workshop before you order. We know your car.
ROG presentation film: choosing your vehicle, Standard or Equal Length design, stainless steel or titanium, Z-Pipe, controlled valves, titanium and tip finishes, and support from choosing your configuration through to shipping.
THE ROG CRAFT
Our process.
From the first bend to the last check. The same care at every step.
-
Design
Designed for your vehicle.
Geometry matched to your model, carefully studied bends and precise mounting points. Everything starts with accurate design.
-
Manufacture
Crafted with precision.
Tube bending, part fitting and TIG welding: every joint receives the same care.
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Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
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Assembly
Every part in its place.
Components are assembled and adjusted. On valved systems, the mechanism is fitted, set up and tested.
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Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
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Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
Customer builds
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