Valved Exhaust System for BMW M3 / M4 F80 / F82 / F83 3.0T (2014-2019)
Configuration
BMW M3 / M4 F80 / F82 / F83 Valved Exhaust System (2014-2019)
Valves
Operated by remote control, factory-paired.
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 M3 F80, M4 F82 and F83 exhaust in detail.
The first turbocharged M3, the F8x generation brings together the M3 F80 saloon, the M4 F82 Coupé and the M4 F83 Convertible around the S55: a 3.0-litre twin-turbo straight six with forged crankshaft and closed deck, 431 hp in standard form and 450 hp as a Competition, 550 Nm in both cases. All three body styles take the same system, documented for cars built from 2014 to 2019. For a 2020 car, your VIN lets us check; the M3 G80 and M2 Competition have their own listings.
Every F8x owner knows the reputation: a flat, synthetic factory sound, supplemented by Active Sound Design, which plays an artificial sound through the speakers. The car goes faster than it sounds. This valved cat-back lets the S55 express itself mechanically, and you choose its voice: Standard, without a resonator, for the raw grain of the twin-turbo; Equal Length, whose two pipes of equal length raise the note and make it more consistent; Equal Length + Z-pipe for an exotic high pitch like a Japanese naturally aspirated engine.
With the valves closed, the M3 or M4 stays close to its stock sound for everyday journeys. Fitting is done without welding, using clamps and gaskets, in about two hours, with a system built to your VIN; the valves follow the factory control or the Rog remote.
The “Manifold” option sells the S55’s downpipes, with their catalytic converter: on their own, they change the voice and the weight, and it is the ECU remap that turns them into horsepower. The 200-cell downpipes keep the S55’s exhaust gas treatment for the road; with 100 cells, the car is accepted or not depending on the vehicle and the rules in your country; the decat version is reserved for track use. On the cat-back side, 304 stainless steel thickens the twin-turbo’s grain, while titanium brightens it and removes around 40% of the mass.
BMW M3 F80 / M4 F82 / F83 3.0T exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN, bolt-on with no welding |
|---|---|
| Vehicles and chassis codes | BMW M3 saloon F80, M4 Coupé F82 and M4 Convertible F83, standard and Competition |
| Engine | S55, 3.0-litre twin-turbo inline-six, 431 to 450 hp and 550 Nm |
| Years | 2014-2019 |
| Design | Standard, Equal Length or Equal Length + Z-pipe |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control or the Rog remote |
| Front section (option) | Downpipes with 200-cell or 100-cell catalytic converters, or decat |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the BMW M3 F80 / M4 F82 / F83 3.0T exhaust.
Does the M4 Convertible F83 take the same system as the M4 Coupé F82?
Yes: the F83 Convertible shares the system of the M4 F82 and the M3 F80, with the same designs, materials and downpipes. As with every order, we check your F83's VIN before manufacture, especially for a 2020 car.
Why is the S55 said to be the BMW six-cylinder that responds best to Stage 2?
Because its mechanicals can handle very high outputs: with downpipes and an ECU remap at an approved tuner, the page publishes 530 hp and 720 Nm for both the base version and the Competition, whereas the cat-back alone makes do with the factory electronics.
BMW M3 / M4 F80 / F82 / F83 3.0T with a Rog exhaust: what should you know about vehicle inspection?
Valves closed, for a voice close to stock; the 200-cell downpipes or the original front section leave emissions control in place, the 100-cell ones are accepted or not depending on the car and the rules in your country, and the decat version is reserved for track use.
Standard, Equal Length or Z-pipe on an M4 F82?
Standard for the raw grain of the twin-turbo and volume; Equal Length for a higher-pitched, smoother inline-six that makes you forget the synthetic factory sound; Z-pipe for the highest note, reserved for fans of extreme experiences.
Does Active Sound Design stay active with the Rog system?
The system does not modify the car’s electronics; what changes is that the mechanical sound of the S55 finally comes out of the exhaust, with the valves open, instead of being suggested by the speakers.
BMW M3 F80 / M4 F82 / F83 3.0T: Does a valved exhaust system drone?
No. With the valves closed, the gases flow through the whole rear silencer and the cabin stays calm at a steady speed. Our Rog exhausts are designed to avoid drone. Learn more: Why our systems stay calm on the motorway.
Rog expert guide
BMW M3 / M4 F80 F82 F83 exhaust: giving the S55 a real voice again, the complete guide
The F8x generation made BMW M history: the first turbocharged M3, a sharpened chassis and an S55 that has become a tuning benchmark. But it also carries a reputation every owner knows: a factory sound considered flat, synthetic and unworthy...
In detail
Rog Advisor
A question about this exhaust?
Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
The Rog Advisor is an automated assistant trained on our product pages and answers. For an important decision, write to us: we confirm by e-mail.
Unsure about your configuration? Talk to us before you order. We know your car. Write to us at contact@rogmotorsport.com: we reply in writing, in English, within 24 hours. Email us
Reviews imported from our previous system and translated from French; verified purchases carry the badge.
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.
-
Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
-
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.
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