Mercedes GLC 63 AMG X253: giving the AMG V8 its thunder back, the complete guide
The GLC 63 is a unique case: the only compact SUV in the world with a twin-turbo V8. That exclusivity deserves to be heard, yet the OPF versions have become surprisingly quiet. Freeing the GLC's V8 means restoring its very reason for being. Here you will find everything that matters before configuring the exhaust for your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo: catalytic converter, material, valves, tips and vehicle inspection.
Your valved exhaust for Mercedes-AMG GLC63 / GLC63 S X253 is configured from your VIN, and the Mercedes GLC X253 Valved Exhaust page brings together every system we make for this generation.
Valved Exhaust System for Mercedes-AMG GLC63 / GLC63 S X253 4.0 V8 biturbo (2017-2022)From 2 890 € · free delivery · 20 working days
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Your Rog exhaust for the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo
Price shown on the product page, in your currency
Configure my exhaustThe short answer.
- Vehicles
- Mercedes-AMG GLC63 / GLC63 S X253 4.0 V8 biturbo (2017-2022)
- Engine
- M177 · 476 to 510 hp · 650 to 700 Nm, depending on the version
- Exhaust
- Valved cat-back, built for your VIN
- Material
- 304 stainless steel or titanium
- Front section
- Optional: catted downpipe with 200 or 100 cells, or decat
- Valves
- Rog remote, or factory control if your vehicle has it
- Lead time
- 20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship
Closely related versions have their own guide: Mercedes-Benz GLC300 X253 2.0 turbo, Mercedes-AMG GLC43 X253 3.0 V6 biturbo, Mercedes-AMG G63 W463A 4.0 V8 biturbo, Mercedes-AMG GT63 / GT63 S X290 4.0 V8 biturbo.
The AMG 4.0 twin-turbo V8: a hand-built engine, held back as it leaves the factory
The 4.0 twin-turbo V8 in your GLC 63 AMG X253 comes out of the AMG workshops in Affalterbach, built according to the "One Man, One Engine" principle: one engine, one engine builder, one signed plate. Turbos nestled in the vee, massive torque, volcanic character. But recent regulations have forced an OPF and oversized silencers on it: the AMG V8, famous for its thunder, has become polite. For many owners, it is a betrayal of the AMG spirit.
The Rog exhaust puts right that betrayal: a free-flowing layout, controllable valves, and the V8 gets back the deep rumble punctuated by bangs on the overrun that made AMG a legend. With the valves closed, your Mercedes becomes a limousine again.
How the exhaust on your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo is put together
An exhaust system is best understood in two parts. Here is what each one does, and what Rog replaces.
The cat-back is the complete exhaust system
It is everything you can see under your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo, from the outlet of the front section to the tips: pipes, silencers, valves. This is the part where most of our research and development goes: it is what shapes the sound, and it is enough on its own to transform the car.
The front section, where the catalytic converter sits
On your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo, it is the downpipe, the pipe leading from the turbo. It contains the factory catalytic converter: the second restriction in the exhaust, after the silencer. Replacing it is optional: it frees up the flow, and it is the ECU remap that turns that into horsepower.
The figures for your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo
An exhaust system is judged first by ear and on the scales. The extra horsepower comes from an ECU remap.
Power
Torque
Published factory and Stage 2 figures. Factory figures vary by version; Stage 2 figures published for the 510 hp version.
The Rog exhaust works with or without an ECU remap. To get the full potential out of your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo, we recommend taking it to an approved tuning centre afterwards.
To be completely transparent: the exhaust alone brings better breathing and sound, while Stage 2 brings the transformation. The AMG V8 is known among tuners for handling power comfortably: with the Rog exhaust and an ECU remap at an approved tuning centre, the figures above stay within the reliability range of an engine designed with headroom.
Configuring your exhaust, step by step
3 choices, in the same order as the product page configurator.
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Step 1 of 3: Material: stainless steel or titanium
Titanium costs more than stainless steel; the price of each version is shown on the product page, in your currency.
304 stainless steel
- Weight
- Baseline
- Sound
- Full and rounded
The safe bet: strong, corrosion-proof, with a full, rounded sound. The best value for money.
Titanium
- Weight
- Around 40% lighter
- Sound
- Metallic, crystal-clear
It makes the exhaust around 40% lighter for the same design. Its note is more metallic and clearer higher up the rev range, and its finish ranges from brushed to blued.
No worries on durability: 304 stainless steel shrugs off winter road salt and titanium does not rust. Stainless steel or titanium: what really changes.
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Step 2 of 3: Front section: downpipe and catalytic converter
Optional: the downpipe on your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo, with its catalytic converter. Each option is placed on our sound scale of 0 to 10, valves open, with the factory exhaust at 3.
Cat-back only
Included
7/10Factory emissions control
The factory front section stays in place. It is already a complete transformation, and the choice of many of our customers.
200-cell sports catalytic converter
8/10Road use and inspection
More flow, emissions control retained: the right option for road use.
100-cell sports catalytic converter
9/10Inspection: depends on local rules
More open than the 200-cell: the sound hardens at high revs and emissions control is reduced.
Decat
10/10Track use
Flow with no filter at all: the rawest sound and the sharpest response.
Sound intensity, on a scale of 0 to 10
- 10/10Decat downpipe + Rog cat-back
- 9/10100-cell sports catalytic converter + Rog cat-back
- 8/10200-cell sports catalytic converter + Rog cat-back
- 7/10Rog cat-back only, factory catalytic converter retained
- 3/10Factory exhaust, for comparison
Valves open. With the valves closed, every configuration becomes discreet again.
What about the engine warning light? With a sports cat, it can come on with some engines: the sensor placed after the catalytic converter measures a different level of emissions control from the original. It is not a mechanical failure, but a warning light should never be masked or cleared without dealing with its cause: the right answer is a catalytic converter suited to the engine, with a map by a tuner who takes it into account. The decat version, for track use only, almost always triggers it. If this happens to you, write to us and we will point you in the right direction. Passing vehicle inspection with a sports exhaust.
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Step 3 of 3: Valves: Rog remote or factory control
Two ways to control the valves on your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo.
Rog remote
A discreet control unit in the boot and a two-button remote: you open and close whenever you like, independently of the drive modes. For fitting, we support you by email.
Factory control
- Only for vehicles fitted with factory valves
- Controlled by the drive modes
For vehicles fitted with factory valves: the exhaust connects to their control and the drive modes stay in charge, with no extra control unit.
At 130 km/h, many sports exhausts drone. Here, with the valves closed, the exhaust flows through the silencer and stays composed when cruising; open, it makes itself heard when you choose. More about exhaust drone.
Your choices carry over to the product page: only the finishes, your VIN and the cart remain.
The Rog sound signature on the AMG V8
The AMG V8 has a sound identity recognised worldwide: a deep, rolling thunder punctuated by sharp bangs on the overrun. Our exhaust removes what stifles it and restores that signature in full with the valves open. With the valves closed, the V8 turns hushed again: the limousine and the muscle car in the same vehicle.
From order to fitting
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Configuration
You configure the exhaust and enter the VIN from box E of your registration document or from the base of the windscreen.
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Check
Your VIN is checked before any manufacturing begins.
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Manufacturing
The exhaust is produced to order, for your vehicle.
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Delivery
Free, insured parcel, tracking number from dispatch.
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Fitting
Around two hours in the workshop, with no welding or cutting.
20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship, from the date of purchase
- Payment
- Card, PayPal or bank transfer
- Installation
- At the garage of your choice
Is your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo still under the manufacturer's warranty? In Europe, the manufacturer cannot refuse cover simply because a part from another brand has been fitted: it is up to the manufacturer to prove that the fault came from that part. Our article on the manufacturer's warranty.
Our recommendations for your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo
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Daily driving
- Stainless
- Cat-back only
- Rog remote
Your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo stays easy to live with, the factory emissions control is retained, and you open the valves whenever you decide.
View this configuration -
Fast road
- Titanium
- 200-cell downpipe
- ECU remap
The best of both worlds: character and breathing, with emissions control retained.
View this configuration -
Track
- Titanium
- Decat downpipe
- Stage 2
The most extreme configuration, for track use only.
View this configuration
Every Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo has its own story and its own use: if none of these profiles sounds like you, let's talk.
Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo: your questions
How much power does an exhaust system add to the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo?
As standard, the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo produces from 476 to 510 hp and 650 to 700 Nm, depending on the version. The exhaust alone acts first on sound, breathing and weight; the extra horsepower comes from an ECU remap. With a Stage 2 build, the published figures for the 510 hp version reach 590 hp and 920 Nm.
Stainless steel or titanium: which material for the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo?
The Rog exhaust comes in stainless steel and titanium, at the price shown on the product page in your currency. Stainless steel is the safe bet, with a full sound; titanium makes the exhaust around 40% lighter and gives a more metallic note higher up the rev range.
Do you need to replace the catalytic converter on the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo?
It is not compulsory. The cat-back alone is enough to change the character of the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo. Replacing the downpipe is how you go further, together with an ECU remap: 200 cells for the road, 100 cells or decat for more radical use.
Will a Rog exhaust pass vehicle inspection on the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo?
The cat-back only and the 200-cell converter both retain emissions control: present the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo with the valves closed. With the 100-cell, acceptance at the emissions test depends on the car and local rules; the decat is intended for track use.
How is the Rog exhaust fitted to the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo?
With clamps and gaskets, no welding or cutting: around two hours in the workshop for a well-equipped mechanic. The exhaust is built to the VIN of your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo.
What does a Rog exhaust cost for the Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo, and how long does it take?
The price depends on the configuration and is shown on the product page, in your currency. Allow 20 working days from order confirmation to delivery. Delivery is free and the exhaust comes with a 3-year warranty.
Valved Exhaust System for Mercedes-AMG GLC63 / GLC63 S X253 4.0 V8 biturbo (2017-2022)
From 2 890 € · 3-year warranty
Configure my exhaustUnsure about your configuration? Write to us.
Stainless steel or titanium, cat-back only or the complete system: the right choice depends on how you drive and on your Mercedes-AMG GLC63 / GLC63 S X253 V8 biturbo. We take the time to talk it through before you order, with a reply within 24 hours. We are not here to push a sale: we help you choose, even if that means a cheaper option because it suits the way you drive. Write to us: we reply in writing, in English.
Rog is a French brand, and the way we work comes down to one idea: an exhaust system should be sold with advice, not just a product page. More than 500 exhaust systems fitted and a rating of 4.9 out of 5.
Further reading
- All Mercedes-AMG exhaust systems
- Mercedes-Benz GLC300 X253 2.0 turbo
- Mercedes-AMG GLC43 X253 3.0 V6 biturbo
- Mercedes-AMG G63 W463A 4.0 V8 biturbo
- Stage 2: the role of the downpipe
- How to pass vehicle inspection with a modified exhaust
- Pop & Bang: how it works, and is it risky?
- The 28 brands we cover
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