Best valved exhaust for BMW M3 / M4 G80, G81, G82 and G83

Your vehicle.

All our exhausts for this generation, version by version, are brought together on one page: BMW M4 G82 / M3 G80 exhaust system.

The G8x generation M3 and M4 form a family of four body styles, all powered by the same S58 straight-six. For the exhaust, that is good news: a single Rog exhaust fits them all. Here is what you should know about your car before choosing.

Body styles

G80 (M3 saloon), G81 (M3 Touring), G82 (M4 coupé), G83 (M4 Convertible)

Years

Sedan and coupé since March 2021, Convertible since summer 2021, Touring since late 2022; facelift in 2024

Engine

S58: 2,993 cc straight-six, two turbos

Factory output

480 hp and 550 Nm (base); 510 hp and 650 Nm (Competition); 530 hp and 650 Nm (facelifted Competition M xDrive, from 2024)

Drivetrain

Rear-wheel drive, or M xDrive on the Competition; Touring and Convertible with M xDrive only

Tailpipes

Four, two on each side of the diffuser

Factory valves

Electrically controlled, according to the drive mode

Four body styles, one generation

BMW unveiled the M3 sedan G80 and the M4 coupé G82 in September 2020, for a market launch in March 2021. The M4 Convertible G83 followed in summer 2021, with a fabric roof and only as a Competition M xDrive. The M3 Touring G81, the first estate in M3 history, arrived last: presented at Goodwood in June 2022 and delivered from the end of the year, also only as a Competition M xDrive.

All four were facelifted in 2024: the coupé and convertible in spring, the sedan and Touring from summer. The facelift brings styling and equipment updates, and a little more power for the M xDrive versions. From one body style to another, the use changes far more than the mechanics: the sedan for the family, the Touring for travelling loaded, the coupé for pure driving pleasure, the convertible for hearing the engine in the open air.

Versions and factory power

At launch, the range opens with the base M3 and M4: 480 hp (353 kW) and 550 Nm, rear-wheel drive, with a six-speed manual gearbox. The Competition models rise to 510 hp (375 kW) and 650 Nm, available from 2,750 to 5,500 rpm, with the eight-speed M Steptronic gearbox. Their red zone starts at 7,200 rpm.

Since the 2024 facelift, the Competition M xDrive models, whether sedan, Touring, coupé or convertible, receive 530 hp (390 kW), with torque unchanged at 650 Nm. The rear-wheel-drive Competition models keep their 510 hp.

The Rog product page covers this generation from 2021, in base version and as Competition. If your car is a special edition, such as a CS or a CSL, send us your VIN before ordering: we will confirm in writing what suits it.

Factory 510 hp version

Factory 480 hp version

Stage 2: published figures with the front section and an ECU remap carried out by a tuner.

Rear-wheel drive or M xDrive

The M xDrive all-wheel drive arrived in summer 2021 on the Competition models. It favours the rear axle and offers three modes: 4WD, 4WD Sport, which sends even more torque to the rear, and 2WD, available once stability control is switched off. At the rear, the active M differential distributes torque between the two wheels.

For the exhaust, the drivetrain changes nothing. The Touring and the Convertible exist only with M xDrive, and they receive the same Rog exhaust as the rear-wheel-drive sedan or coupé.

The S58, heart of the generation

The S58 is a 2,993 cc straight-six, successor to the S55 that powered the M3 F80. It is boosted by two single-scroll turbos: the first receives the exhaust gases from cylinders 1 to 3, the second those from cylinders 4 to 6. The compressed air then passes through indirect water cooling before entering the engine. The same engine also powers the M2 G87.

Each turbo has its own downpipe: two downpipes therefore leave the S58, carrying the catalytic converter. That is the front section of the exhaust. Everything that follows, up to the four tips, forms the cat-back, the part that shapes most of the sound.

The sound of the S58

A straight-six is balanced by nature, and you can hear it: a continuous sound without jolts, which becomes more metallic as the revs climb. On the S58, each turbo receives the gases from three cylinders, and its turbines absorb part of the pulsations before they reach the exhaust. At idle, the engine growls; approaching the red zone, it takes on a higher, tighter voice.

That is why the design of the exhaust matters so much on this car. The Standard version keeps the deep, full grain of the twin-turbo. The Equal Length gives the pipes equal lengths: the pulses arrive in a regular cadence, and the note becomes cleaner and more melodic. The Z-pipe adds a crossover of the flows and pushes the note higher: it is the highest in our range for the S58.

The character of the sound is then chosen, at the same price. The straight pipe lets the engine's raw grain through; the resonator gives it a rounder and slightly softer voice, without taking anything away from the exhaust's sporting character.

What holds back the factory sound

The S58 has never lacked a voice: it is its factory exhaust that holds it back. Its silencers are bulky, designed for noise regulations, and its valves stay closed in the calmer drive modes.

Inside the cabin, BMW complements what you hear through the speakers: with Active Sound Design, part of the engine sound is electronically amplified. Inside, the effect works. Outside, for passers-by as well as for you, with the window down or the roof open, the car stays well below what its engine can do.

A valved exhaust answers that problem without imposing it on every journey. With the valves closed, the car stays close to its factory level, which matters when leaving a car park at dawn or on a motorway stage. With the valves open, the gases bypass the silencer chambers, and the six-cylinder can finally be heard from outside.

Factory valves and drive modes

As standard, the G8x exhaust has electrically controlled valves, operated according to the selected mode: in Sport and Sport Plus, the exhaust sound changes. The Rog product page leaves you the choice. With the Factory option, the exhaust arrives with the mounts for your valves: your garage refits them there, and your drive modes stay in control. With the Rog option, the exhaust arrives with the valves fitted, with a two-button remote: open, they stay open; closed, they stay closed, whatever mode is engaged.

Four tips, diffuser and body styles

Like the other recent M cars, the M3 and M4 G8x have two pairs of tips, either side of the rear diffuser. Sedan, Touring, coupé or convertible: the Rog exhaust is the same for all four, and your VIN lets us check compatibility before manufacture.

The four tips are chosen on the product page: Rog tips in chrome, gloss black or blued titanium, included; or carbon tips with the M logo, in forged carbon, black carbon or carbon and titanium, as an option. The exhaust can also be ordered without tips. In titanium, the exhaust itself comes in brushed, gold or purple, with no change in price.

What the product page allows, and what it does not do

The product page covers the whole exhaust after the front section and, as an option, the front section itself, under the name "Manifold": none, 200-cell sport catalytic converter, 100-cell sport catalytic converter, or catalyst-free version. The latter is intended for the track.

With the cat-back alone, the S58 keeps its ECU and its factory power: the exhaust changes the sound, with no remap. Power can only be worked on with the front section and an ECU remap entrusted to a tuner. Rog builds your exhaust to your VIN; fitting is up to your garage, with no welding or cutting.

Configure your exhaust.

How the exhaust is put together

On the M3 and M4 G8x, the Rog cat-back starts at the outlet of the two downpipes and runs to the four tips: pipes, silencers and valves. The front section is those two downpipes with their catalytic converter, which the product page offers as an option under the name "Manifold".

Each choice explained in detail, from sound to material: How to configure your exhaust.

Three recommended configurations.

• Everyday

  • Standard
  • Stainless steel
  • No manifold
  • Straight pipe
  • Rog remote

  For an M3 driven every day: the S58 finds its deep voice again, the factory front section stays in place, and one button is enough to open or close the valves.

  View this configuration

• Grand touring

  • Equal Length
  • Stainless steel
  • 200-cell sports catalytic converter
  • Resonator
  • Factory valves

  Designed for a Touring or a Convertible that eats up the miles: a cleaner-sounding six-cylinder, a rounder and slightly softer voice, and your drive modes keeping control of the valves.

  View this configuration

• The most accomplished

  • Equal Length + Z-pipe
  • Gold titanium
  • 200-cell sports catalytic converter
  • Carbon tips with the M logo

  For a weekend M4 coupé: the highest note in our range for the S58, titanium lighter than stainless steel, and carbon tips matching the car's character.

  View this configuration

From order to fitting.

VIN, manufacture, delivery, fitting and warranty, step by step

Questions.

Further reading.

• All our exhausts for BMW M3 / M4 G80 to G83
• BMW M3 / M4 G8x exhaust: unleashing the S58
• Guide to the BMW M3 F80 / M4 F82 / F83
• Guide to the BMW M2 G87