Mercedes-Benz GLB250 X247: the practical SUV that asserts itself, the exhaust system guide

The GLB250's 2.0 turbo: a generous four-cylinder for the family SUV

The GLB250 X247 is powered by a 2.0-litre turbocharged petrol four-cylinder, producing 224 hp and 350 Nm. The torque, available early, lets the GLB move its bulk effortlessly, even when loaded, and gives strong acceleration on country roads as on the motorway. This engine offers a good balance of driving pleasure, flexibility and versatility, in an SUV designed above all for family life.

On this engine, the exhaust makes all the difference between a bland SUV and a car with character. As standard, it filters everything, so the four-cylinder stays inaudible. The ROG valved exhaust replaces it without any ECU remap, and lets you give the GLB250 a voice when you are alone at the wheel, then return to calm with your passengers.

What makes up the exhaust on your Mercedes-Benz GLB250 X247

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

Your Mercedes-Benz GLB250 X247 in figures

What an exhaust changes straight away is the sound, the engine's breathing and the weight at the rear. For more power, add an ECU remap.

Published factory and Stage 2 figures.

With or without an ECU remap, the exhaust fits and works. But it is an ECU remap at an approved tuning centre that truly unlocks your Mercedes-Benz GLB250 X247, and that is what we recommend.

The GLB250's 2.0 turbo retains headroom that a Stage 2 ECU remap can exploit, especially in torque, which is clearly felt on an SUV of this size. The result always depends on the condition of the engine and gearbox and on the quality of the tuning. The ROG exhaust complements this kind of approach by giving the engine freer breathing and a real voice.

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

   For your Mercedes-Benz GLB250 X247, the exhaust costs €2,490 in stainless steel and €2,990 in titanium.

   304 stainless steel

   2 490 €

   Weight

   Baseline

   Sound

   Full and rounded

   Durable, corrosion-resistant, with a rounded, full sound: the most popular option.

   Titanium

   2 990 €

   Weight

   Around 40% lighter

   Sound

   Metallic, crystal-clear

   For the same design, it weighs around 40% less than stainless steel. A more metallic note at high revs and a look all of its own, from brushed to blued.

   Both materials age well: 304 stainless steel copes with winter and salt, 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 GLB250 X247, with its catalytic converter. Sound rating out of 10, valves open: the factory exhaust sits at 3.

   Cat-back only

   Included

   7/10

   Factory emissions control

   Nothing changes at the front: the cat-back alone is already enough to change the car.

   200-cell sports catalytic converter

   +650 €

   8/10

   Road use and French MOT

   The everyday compromise: emissions control is still there, and breathing improves noticeably.

   100-cell sports catalytic converter

   +650 €

   9/10

   French MOT pass not guaranteed

   One step further: more flow, a more aggressive sound, reduced emissions control.

   Decat

   +420 €

   10/10

   Track use only

   Everything unleashed: maximum flow and unrestrained sound, for the track.

   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? It can appear with a sports catalytic converter: the downstream oxygen sensor reads a different level of cleaning from the factory unit. It is not an engine fault, and it is dealt with by an ECU remap or a diagnostic tool. With a decat, an ECU remap becomes necessary. 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 GLB250 X247.

   ROG remote

   

   The simplest solution: a control unit in the boot and a remote, open or closed at the press of a button, whatever mode you are in. A question while fitting? We will get back to you.

   Factory control

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

   Does your vehicle have factory valves? The exhaust keeps their existing control: the drive modes operate the valves, as before, with no added electronics.

   On a long journey, what matters is the absence of drone at a steady speed. With the valves closed, the exhaust keeps the cabin calm; the show is still there whenever you ask for it. More about exhaust drone.

4. 4

   Step 4 of 4: Tips: the visual signature

   Match the tips to the style of your Mercedes-Benz GLB250 X247, 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 GLB250 X247

The GLB250's turbocharged four-cylinder has a more assertive voice than you might imagine: a raspy, slightly dry grain that swells as the boost comes in. As standard, the production exhaust erases everything, and you hear almost nothing of it, even at full load.

With the family on board, close the valves: the GLB250 remains the relaxed SUV you know, ideal for trips with several people. With the valves open, it gains a real presence: a louder start-up, acceleration accompanied by a marked grain, and a personality you would not expect from such a sensible SUV.

From order to fitting

1. Configuration

   You choose the options for your Mercedes-Benz GLB250 X247 and enter its VIN, found in box E of the registration certificate.

2. Check

   We confirm compatibility with your car before we build it.

3. Manufacturing

   Made to order, for your Mercedes-Benz GLB250 X247.

4. Delivery

   Free, insured delivery, with tracking sent on dispatch.

5. Fitting

   Clamps and gaskets, no welding: two hours on average at the garage of your choice.

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? In Europe, fitting a part from another brand is not enough on its own to void it; the manufacturer has to prove the link between that part and the fault. Our article on the manufacturer's warranty.

Our recommendations for your Mercedes-Benz GLB250 X247

• Daily driving

  2 490 €

  • Stainless
  • Cat-back only
  • ROG remote

  Your Mercedes-Benz GLB250 X247 stays easy to live with, the factory emissions control is retained, and you open the valves whenever you decide.

  View this configuration

• Fast road

  3 640 €

  • Titanium
  • 200-cell downpipe
  • ECU remap

  For great roads: more voice and more response, while staying road-friendly.

  View this configuration

• Track

  3 410 €

  • Titanium
  • Decat downpipe
  • Stage 2

  The most extreme configuration, for track use only.

  View this configuration

These profiles are starting points. The right choice is often made in five minutes on the phone.

Mercedes-Benz GLB250 X247: your questions

Further reading

• All Mercedes-Benz exhaust systems
• Mercedes-AMG GLB35 X247 2.0 turbo 4MATIC
• Stage 2: the role of the downpipe
• Passing the French MOT with a sports exhaust
• Stainless steel or titanium: what really changes
• The 22 brands we cover