Mercedes-AMG S63 C217 / A217: V8 grand touring, the exhaust guide

The 5.5 twin-turbo V8: the quiet strength of the S63 Coupé C217

The S63 Coupé C217 is powered by AMG's 5.5-litre direct-injection twin-turbo V8. It produces 585 hp and 900 Nm, an enormous torque figure available very early that propels this large coupé with impressive ease. The thrust is massive and continuous, and the engine is as comfortable cruising as it is driven hard, true to the character of AMG grand tourers.

On a V8 this powerful, the exhaust directly shapes how the car's character comes across. The S63 Coupé's factory exhaust, heavy and highly restrictive, smothers the V8 more than it shows it off. The Rog valved exhaust replaces it with a noticeably lighter system, without touching the engine or the ECU, and lets you choose between the reserve of the big coupé and the full voice of the twin-turbo V8.

What makes up the exhaust on your Mercedes-AMG S63 C217 / A217 V8 biturbo

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

Your Mercedes-AMG S63 C217 / A217 V8 biturbo 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 manufacturer 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-AMG S63 C217 / A217 V8 biturbo, and that is what we recommend.

With its two turbos, the 5.5 V8 has a large margin that a Stage 2 remap can exploit, particularly in torque. The transmission and the engine's condition have to keep up, and the result depends above all on the quality of the tuning work. The Rog exhaust naturally finds its place in such a project, giving the V8 the voice to go with it.

Configuring your exhaust, step by step

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

1. 1

   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

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

   Titanium

   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 3: Front section: downpipe and catalytic converter

   Optional: the downpipe on your Mercedes-AMG S63 C217 / A217 V8 biturbo, 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

   8/10

   Road use and inspection

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

   100-cell sports catalytic converter

   9/10

   Inspection: depends on local rules

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

   Decat

   10/10

   Track use

   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? 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.

3. 3

   Step 3 of 3: Valves: Rog remote or factory control

   Two ways to control the valves on your Mercedes-AMG S63 C217 / A217 V8 biturbo.

   Rog remote

   

   The simplest solution: a control unit in the trunk 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.

The Rog sound signature on the V8 of the S63 Coupé

AMG's twin-turbo V8 has a deep, heavy voice, with a characteristic rumble at start-up and a rich, muffled climb through the revs. In the S63 Coupé, the factory exhaust keeps it on a leash: the V8 is still audible, but as if muffled behind a padded door.

Valves open or closed: you decide. With the valves closed, the S63 Coupé keeps the hushed refinement of an S-Class coupé, ideal for long stints. With them open, the V8 comes out of its shell: a gravelly start-up, a massive rumble under acceleration, and a sound presence that finally matches the coupé's voice to its power.

From order to fitting

1. Configuration

   You choose the options for your Mercedes-AMG S63 C217 / A217 V8 biturbo and enter its VIN, found in box E of the registration document or at the base of the windshield.

2. Check

   We confirm compatibility with your car before we build it.

3. Manufacturing

   Made to order, for your Mercedes-AMG S63 C217 / A217 V8 biturbo.

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 purchase

Payment

Card, PayPal or bank transfer

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-AMG S63 C217 / A217 V8 biturbo

• Daily driving

  • Stainless
  • Cat-back only
  • Rog remote

  Your Mercedes-AMG S63 C217 / A217 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

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

  View this configuration

• Track

  • 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 a few messages.

Mercedes-AMG S63 C217 / A217 V8 biturbo: your questions

Further reading

• All Mercedes-AMG exhaust systems
• Mercedes-AMG S63 C217 / A217 4.0 V8 biturbo
• Mercedes-AMG S65 C217 / A217 6.0 V12 biturbo
• Mercedes-AMG S63 W221 6.2 V8
• 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