Mercedes-Benz G500 / G550 W463 V8: the icon that growls, the exhaust system guide

From the 5.5 naturally aspirated V8 to the 4.0 biturbo: the engines of the G500 / G550 W463

Until 2015, the G500 / G550 W463 is powered by a 5.5-litre naturally aspirated V8 with 388 hp and 530 Nm, which delivers its power progressively, an asset off-road as well as on the road. It then gives way to a 4.0-litre V8 with its two turbos housed in the V: 422 hp and 610 Nm, with generous torque available very early, perfectly suited to such a massive vehicle.

From one engine to the other, the chassis and silhouette of the G-Class do not change, hence a single ROG exhaust for both. The heavy, bulky factory exhaust stifles the V8's voice to preserve comfort on board. The ROG exhaust replaces it with a lighter system that you control, without touching the engine or the ECU: you gain character without giving up discretion.

How the exhaust on your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8 is put together

An exhaust system is best understood in two parts. Here is what each one does, and what ROG replaces.

Your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8 in figures

On a modern car, an exhaust system first changes the voice, the breathing and the weight at the rear. Power, on the other hand, comes from an ECU remap.

Published factory and Stage 2 figures.

Our exhaust systems work perfectly with or without an ECU remap. On your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8, however, we recommend one at an approved tuning centre: it is what lets the engine deliver its full potential.

The two V8s do not respond to remapping in the same way. In Stage 2, the 5.5-litre naturally aspirated engine is quoted at 428 hp and 599 Nm, the 4.0-litre biturbo at 556 hp and 861 Nm, its turbos leaving it far more headroom. The result depends on each vehicle and on the tuner; the ROG exhaust claims no part of it.

Configuring your exhaust, step by step

4 choices, in the same order as the product page configurator.

1. 1

   Step 1 of 4: Material: stainless steel or titanium

   Titanium adds €750 to the price of the stainless steel exhaust.

   304 stainless steel

   Baseline

   Weight

   Baseline

   Sound

   Full and rounded

   The benchmark for high-end exhausts: tough, corrosion-proof, with a full, rounded sound. The choice of most of our customers.

   Titanium

   +750 €

   Weight

   Around 40% lighter

   Sound

   Metallic, crystal-clear

   Around 40% lighter than stainless steel for the same design, with a more metallic sound that turns crystal-clear at high revs. Its finish ranges from brushed to blued tints.

   Over time, both hold up: 304 stainless steel stands up to winter salt and damp, and titanium does not rust. Stainless steel or titanium: what really changes.

2. 2

   Step 2 of 4: Front section: downpipe and catalytic converter

   Optional: the downpipe on your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8, with its catalytic converter. Sound intensity is rated on our scale of 0 to 10, valves open; the factory exhaust scores 3.

   Cat-back only

   Included

   7/10

   Factory emissions control

   The factory catalytic converter stays in place. The starting point and, for many of our customers, more than enough.

   200-cell sports catalytic converter

   +1 120 €

   8/10

   Road use and French MOT

   Emissions control is still very much there, and flow improves noticeably. The choice for everyday driving.

   100-cell sports catalytic converter

   +1 120 €

   9/10

   French MOT pass not guaranteed

   Half as many cells: flow comes close to a decat and the sound gains real aggression at high revs.

   Decat

   +800 €

   10/10

   Track use only

   No emissions control: maximum flow, raw sound, the sharpest revving.

   Sound intensity, on a scale of 0 to 10

   1. 10/10Decat downpipe + ROG cat-back
   2. 9/10100-cell sports catalytic converter + ROG cat-back
   3. 8/10200-cell sports catalytic converter + ROG cat-back
   4. 7/10ROG cat-back only, factory catalytic converter retained
   5. 3/10Factory exhaust, for comparison

   Valves open. With the valves closed, every configuration becomes discreet again.

   What about the engine warning light? A sports catalytic converter can trigger it: the oxygen sensor after the catalytic converter detects less cleaning than with the factory unit. It is not a fault. An ECU remap recalibrates the sensor, and a session with a diagnostic tool clears the fault code. With a decat, the warning light is almost certain without a remap. If it happens to you, call us and we will point you in the right direction. Passing the French MOT with a sports exhaust.

3. 3

   Step 3 of 4: Valves: ROG remote or factory control

   Two ways to control the valves on your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8.

   ROG remote

   

   A small control unit fits in the boot. Two buttons, open and closed: the valves respond at any moment, whatever the drive mode. Simple to fit, and we stay on hand throughout the installation.

   Factory control

   • Only for vehicles fitted with factory valves
   • Controlled by the drive modes

   If your vehicle is fitted with factory valves, the exhaust keeps their existing control. The drive modes decide, just as they did from the factory, with no added electronics.

   On the motorway, with the valves closed, the gases pass through the silencer, designed for cruising: no drone at a steady speed. You open up when you feel like it, not when the motorway decides for you. More about exhaust drone.

4. 4

   Step 4 of 4: Tips: the visual signature

   Match the tips to the style of your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8, understated or bold. A particular finish in mind? Send us a photo and we will look at it together.

   • Stainless steel
   • Black
   • Carbon
   • Blued titanium

   

The ROG sound signature on the G-Class V8

Whether naturally aspirated or biturbo, the G-Class V8 has a deep voice, with the characteristic beat of a V8: broader on the 5.5-litre, tighter on the 4.0-litre. In the standard G, this beat is largely muted, and the icon moves along, imposing but almost silent.

With the valves open, the ROG exhaust gives the G-Class the voice its silhouette calls for: a deep growl at start-up and acceleration you can hear from afar. With the valves closed, your G500 or G550 regains its discretion, for town driving and early-morning departures without waking the neighbours.

From order to fitting

1. Configuration

   You choose your exhaust and enter your VIN, found in box E of your registration certificate.

2. Check

   We check compatibility with your VIN before manufacturing begins.

3. Manufacturing

   Your exhaust is made to order, for your car.

4. Delivery

   Free in Europe, insured to your door, tracked from dispatch.

5. Fitting

   No welding or cutting: clamps and gaskets, around two hours on a lift.

20 working days from order confirmation to delivery

Warranty

3 years, parts and workmanship, from the date of delivery

Payment

In instalments with Klarna

Installation

At the garage of your choice

What about the manufacturer's warranty on your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8? In Europe, a manufacturer cannot refuse warranty cover simply because a part from another brand has been fitted: it has to prove that the fault comes from that part. Our article on the manufacturer's warranty.

Our recommendations for your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8

• Daily driving

  3 990 €

  • Stainless
  • Cat-back only
  • ROG remote

  Your Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8 stays easy to live with, the factory emissions control is retained, and you open the valves when you decide.

  View this configuration

• Fast road

  6 110 €

  • Titanium
  • 200-cell downpipe
  • ECU remap

  More sound, more breathing, and a car you can still present at the French MOT.

  View this configuration

• Track

  5 790 €

  • Titanium
  • Decat downpipe
  • Stage 2

  The most extreme configuration, for track use only.

  View this configuration

And if you are still unsure, that is perfectly normal: it is exactly why we answer the phone.

Mercedes-Benz G500 / G550 W463 V8 biturbo or G500 / G550 W463 V8: your questions

Further reading

• All Mercedes-Benz exhaust systems
• Mercedes-Benz G550 W463A 4.0 V8 biturbo
• Mercedes-AMG G63 W463 5.5 V8 biturbo
• Mercedes-AMG G65 W463 6.0 V12 biturbo
• Exhaust diameter: bigger does not mean more powerful
• Passing the French MOT with a sports exhaust
• Stainless steel or titanium: what really changes
• The 22 brands we cover