ROG stainless steel valved exhaust for BMW M3 G80 / M4 G82 3.0T

Stainless steel rear silencer of the ROG exhaust for BMW M3 G80 / M4 G82 3.0T

ROG stainless steel sports exhaust for BMW M3 G80 / M4 G82 3.0T, laid on the floor

ROG stainless steel valved exhaust with Z-pipe for BMW M3 G80 / M4 G82 3.0T

Rear silencer of the ROG Z-pipe exhaust for BMW M3 G80 / M4 G82 3.0T

ROG Z-pipe exhaust for BMW M3 G80 / M4 G82 3.0T, laid on the floor

Stainless steel downpipe for BMW M3 G80 / M4 G82 3.0T

BMW M Performance style carbon exhaust tips: gloss carbon, forged, blued titanium or black inner for BMW M3 G80 / M4 G82 3.0T

ROG exhaust tips: polished stainless steel, gloss black, carbon and blued titanium for BMW M3 G80 / M4 G82 3.0T

ROG exhaust valve control kit: control unit, remote and wiring in their case for BMW M3 G80 / M4 G82 3.0T

ROG remote for opening and closing the exhaust valves for BMW M3 G80 / M4 G82 3.0T

Diagram of the ROG valved silencer: gas flow with valves open and valves closed for BMW M3 G80 / M4 G82 3.0T

ROG exhaust system packed in its reinforced shipping box for BMW M3 G80 / M4 G82 3.0T

Configuration

BMW M3 / M4 G80 / G81 / G82 / G83 Valved Exhaust (2021-2026)

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Equal Length or Z-pipe: the difference

Product variants

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

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The BMW M3 and M4 G8x exhaust in detail.

This system is designed for the four body styles of the G8x generation launched since 2021: M3 G80 saloon, M3 Touring G81, M4 G82 coupé and M4 Convertible G83, in base form (480 hp, 550 Nm) as well as Competition (510 hp, 650 Nm). All of them use the S58, a 3.0-litre twin-turbo inline-six, and all take exactly the same Rog system, built to your VIN.

From the factory, the S58 breathes through a petrol particulate filter and bulky silencers, to the point that BMW plays part of the sound through the cabin speakers. With this valved cat-back, also known as a valve exhaust, you keep a sound close to stock with the valves closed; with the valves open, the inline-six finds its real voice. The design sets the tone: Standard, with no resonator, keeps the raw grain of the twin-turbo; Equal Length balances the two pipes, the pulses synchronise and the note rises, smoother and less rasping; the Z-pipe pushes towards an exotic high pitch, close to a Japanese naturally aspirated engine at high revs.

Fitting requires no welding or cutting, using band clamps and gaskets, in about two hours on a lift. If your M3 or M4 still has its factory valves, the system takes over their control and the drive modes stay in charge; otherwise the Rog remote, whose control box sits in the boot, opens or closes them at the press of a button.

After the silencer, the part holding the S58 back is the downpipe, which carries the catalytic converter: this page offers it under the “Manifold” option. With a 200-cell converter it keeps the S58’s emissions control; the decat version is reserved for track use. On its own it brings sound and a little weight saving; the horsepower comes with an ECU remap. As for materials: 304 stainless steel with a full sound, or titanium, around 40% lighter for the same design, in brushed, chrome, gold or purple.

BMW M3 G80 / M4 G82 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 G80 (saloon), M3 Touring G81, M4 G82 (coupé), M4 Convertible G83, base and Competition
Engine	S58, 3.0-litre twin-turbo inline-six, 480 to 510 hp and 550 to 650 Nm depending on the version
Years	2021-2026
Design	Standard, Equal Length or Equal Length + Z-pipe
Materials and finishes	304 stainless steel or titanium; titanium in brushed, chrome, gold or purple
Valves	Factory control through the drive modes, or the Rog remote
Front section (option)	Downpipe with 200-cell or 100-cell catalytic converter, or decat
Manufacturing and delivery	Made to order, 20 working days from confirmation to delivery, free delivery
Warranty	3 years, parts and workmanship

Questions about the BMW M3 G80 / M4 G82 3.0T exhaust.

Does the system fit the M3 Touring G81 and the M4 Convertible G83?

Yes. G80, G81, G82 and G83 share the same Rog system, Competition included. You give us your VIN when you order and we check compatibility before starting manufacturing.

Does an M3 or M4 G8x need an ECU remap to fit the cat-back?

No, the S58 keeps its original ECU with the cat-back alone. An ECU remap makes sense if you also replace the downpipe: at Stage 2, the published figures for the 510 hp version reach 700 hp and 900 Nm. A sport catalytic converter can trigger the engine warning light, which the remap resolves.

Will my M3 G80 pass vehicle inspection?

Presented with the valves closed, it stays close to its factory sound level. With the cat-back alone or the 200-cell downpipe, emissions control is still there. The 100-cell is accepted or not depending on the car and the rules in your country, and the decat version is designed for the track.

Standard, Equal Length or Z-pipe: which to choose on the S58?

Standard for a raw, full sound. Equal Length for a higher-pitched, smoother inline-six, the choice that changes the car’s identity the most. Z-pipe for the highest, most exotic note, reserved for those who want to take the sound experience all the way.

Factory valves or the Rog remote on an M4 G82?

Both are chosen when you configure. With the factory control, the BMW’s drive modes open and close the valves. With the Rog remote, two buttons are enough, whatever mode is engaged.

ROG expert guide

BMW M3 / M4 G80 G81 G82 G83: unleashing the S58, the complete exhaust system guide

You own an M3 or M4 from the G8x generation. So you already know that the S58 is one of the most accomplished straight-six engines BMW M has ever built. What you may know less well is just how much...

Read the guide for my model Watch the video

In detail

ROG® valved exhaust system — BMW M3 G80 / M4 G82 3.0T (2021–2026)

The M3 G80 and M4 G82 share the S58, a twin-turbo inline-six that the stock system keeps in the background. The ROG system replaces it with a valved system you control, without touching the engine or the ECU. Valves closed, you keep the comfortable stock sound. Open, you hear the twin-turbo six.

Performance

At ROG we go after the best, which is why we always recommend a remap at an approved centre after fitting. Our systems fit perfectly with or without, but it is with a full remap that your engine will express all of its potential.

510 hp / 650 Nm

	Stock	Stage 2 + Reprog
Power	510 hp	700 hp
Torque	650 Nm	900 Nm

Stage 2 + Reprog

PowerStock: 510 hp700 hp

TorqueStock: 650 Nm900 Nm

480 hp / 550 Nm

	Stock	Stage 2 + Reprog
Power	480 hp	700 hp
Torque	550 Nm	900 Nm

Stage 2 + Reprog

PowerStock: 480 hp700 hp

TorqueStock: 550 Nm900 Nm

BMW M4 G82 Competition pre-facelift — stock 510 hp / 650 Nm

	Stock	Stage 2 + Reprog
Power	510 hp	700 hp
Torque	650 Nm	900 Nm

Stage 2 + Reprog

PowerStock: 510 hp700 hp

TorqueStock: 650 Nm900 Nm

Stage 2 with a full remap.

Design

The system comes in two configurations, your choice.

Standard : the raw, direct sound of the twin-turbo S58. No resonator, more volume, more presence. The twin-turbo character comes through in full, unfiltered.

Equal Length : the lengths of the two pipes are balanced before they merge. The pulses sync up and the note rises in pitch. The S58 sounds like a true inline-six: higher, more even, less raspy. A sound register that completely changes the acoustic identity of the car.

Z-Pipe option : a Z geometry that amplifies the crossing of the exhaust flows. The note turns very high in frequency, exotic, close in character to a naturally aspirated Japanese engine at high revs. For drivers who want to take the sound experience to its limit.

The Manifold option: what it replaces

Between the engine and our system, one stock part remains, the one that holds the catalytic converter. On the S58 it is the part that constrains the most: replacing it is the only way to gain power, and only with a remap. On its own it brings sound and a little less weight, no horsepower. The 200-cell sport catalytic converter retains exhaust after-treatment; the 100-cell version and the catalyst-free variant do not. No component type approval exists for these parts: check the regulations in your country before fitting.

Read the full guide All BMW systems All 28 brands

Other versions and closely related engines

See all the BMW valved exhaust systems.

Delivery time
Every system is made to order for your vehicle. Allow 20 working days from order confirmation to delivery. A tracking number is sent to you automatically as soon as your order ships.

Shipping method
Signed-for delivery, across Europe and worldwide. Your exhaust arrives protected and insured, right to your door.

Shipping costs
Free, with no minimum order, anywhere in Europe.

No welding
The system fits with high-strength clamps only, with joints guaranteed leak-free. Gas flow is optimised from the very first start-up.

Fitting time
2 hours on average for a well-equipped mechanic. A vehicle lift is recommended.

Warranty
All ROG systems are covered by a 3-year parts and workmanship warranty from the date of purchase.

Valve system
The valves open and close the silencer in real time. Closed, the exhaust stays discreet for everyday driving. Open, the sound is fully unleashed.

Control mode
Chosen when you configure your exhaust.

ROG remote

Open and close in one click, from inside or outside the vehicle. Simple and instant.

OEM integration

Controlled through the vehicle's factory systems: drive modes, steering wheel buttons or engine speed, depending on the model.

Unsure about your configuration?

Talk to our workshop before you order. We know your car.

Contact the workshop +33 7 56 95 95 39

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.
Inspection

Check. Then approve.

Geometry, welds, connections and gas flow: the key points are inspected before shipping.
Shipping

Ready to join you.

Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.