Best valved exhaust for Mercedes-AMG C63 W204, S204 and C204

Your vehicle.

All our exhausts for this generation, version by version, are brought together on one page: Mercedes-AMG C63 W204 Valved Exhaust.

The W204-generation C63 belongs to a vanished species: a C-Class whose bonnet houses a naturally aspirated V8 of more than six litres. Saloon, estate or coupe, it owes everything to this engine, and its exhaust is the instrument that makes it heard. Here is what defines it, before you choose a line for it.

Body styles

W204 (saloon), S204 (estate), C204 (coupe); excluding the C 63 AMG Coupe Black Series

Years

Launched in 2007, facelifted in 2011; product page: 2011 to 2015

Engine

M156: 6,208 cm³ naturally aspirated V8, billed by AMG as a 6.3

Factory output

457 hp (336 kW) at 6,800 rpm; 487 hp (358 kW) with the AMG Performance package; 600 Nm at 5,000 rpm

Drivetrain

Rear-wheel drive; AMG Speedshift MCT seven-speed gearbox on facelifted models

Front section

Catalytic converters at the manifold outlets

Special edition

Edition 507 (2013): 507 hp and 610 Nm, to be checked against the VIN

A C-Class like no other

The W204-generation C63 AMG appeared in 2007 as a saloon, then came as an S204 estate. In 2011, Mercedes facelifted the C-Class, and the C63 followed: redesigned front end and the AMG Speedshift MCT seven-speed gearbox.

The C204 coupe also arrived in 2011, on sale from the summer, with the mechanics of the facelifted saloons. An extreme version appeared at the same time, the C 63 AMG Coupe Black Series, with bodywork and an exhaust of its own: our product page does not cover it.

The W204 C63 also remains the only C63 with a naturally aspirated engine. The W205 generation moved in 2015 to a 4.0-litre twin-turbo V8, and the W206 gave up the V8 for a four-cylinder hybrid. Among all C63s, the W204's 6.2 therefore remains the only engine that breathes without a turbo, and the biggest.

The product page targets the facelifted models, from 2011 to 2015: saloon, estate, built until 2014, and coupe. Is your C63 from 2008, 2009 or 2010? Send us its VIN: we examine what is possible for it before any production, and reply in writing.

457 or 487 hp, and the Edition 507

The standard C63 quotes 457 hp, or 336 kW, at 6,800 rpm, and 600 Nm at 5,000 rpm. The AMG Performance package raises it to 487 hp, or 358 kW; on the facelifted coupe, it brings the 0 to 100 km/h time down to 4.4 seconds.

In 2013, the Edition 507, unveiled at the Geneva show, pushes the V8 to 507 hp and 610 Nm thanks to parts from the SLS AMG: forged pistons and connecting rods, a lightened crankshaft. It was available as saloon, estate and coupe. Our product page publishes the values of the 457 and 487 hp versions; for an Edition 507, your VIN lets us check before the order.

The bars below show the factory figures from the product page for each version, with those of a tune that adds the front section and a remap at a tuner.

Factory 457 hp version

Factory 487 hp version

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

The M156, the first engine entirely signed by AMG

Mercedes presents the M156 as the first engine developed entirely by AMG. Its V8 displaces 6,208 cm³, with a bore of 102.2 mm for a stroke of 94.6 mm and a compression ratio of 11.3 to 1. AMG nevertheless bills it as a 6.3, hence the name C 63.

No turbo: the V8 breathes freely, and its maximum power arrives right at the top, at 6,800 rpm. With a bore larger than the stroke, this engine loves revs, and it is in the last part of the rev counter that the C63 gives its best. The same engine powers other AMGs of the period, including the E63 W212 and the ML63 W164, which have their own line.

On a naturally aspirated engine, the exhaust does more than filter noise: the shape of the pipes at the engine outlet affects cylinder filling at high revs. Just after the manifolds are the catalytic converters, which form the front section. The cat-back then begins and carries mufflers and flaps.

Seven gears and rear-wheel drive

The W204 C63 remains a pure rear-wheel-drive car: all the V8's torque goes through the rear wheels. On facelifted models, the AMG Speedshift MCT seven-speed gearbox offers, among others, a Controlled Efficiency programme, the most economical, for driving on a trickle of throttle.

For the line, neither the gearbox nor the bodywork makes a difference: saloon, estate and coupe receive the same Rog line. The VIN, checked on every order, confirms the version before building.

The song of the 6.2

The M156 has a voice of its own: deep and menacing at idle, it swells with the revs and recalls the big American V8s. No turbo damps the pulses, and everything the engine produces reaches the line, which decides what you hear.

The factory line lets a good share of the bass through, but it holds back the top of the register, precisely where this V8 becomes most intoxicating. With the Rog line, flaps open, the crescendo up to the maximum-power rpm is heard in full; with the flaps closed, the C63 leaves the garage without waking the neighbourhood, even on a cold start.

The sound character is chosen at the same price. The straight pipe keeps the V8's raw, rasping grain as it is; the resonator gives it a rounder, slightly softer voice, welcome when the S204 estate sets off on holiday loaded to the roof.

Flaps fitted by Rog

On this product page, we recommend the Rog system: the line arrives with the flaps fitted, a two-button remote and a small box to place in the boot. Open, the flaps stay open until you close them, whatever the gearbox programme; closed, they stay closed, even with your foot to the floor.

That is what gives a C63 two faces: a V8 unleashed on an open road, a well-mannered saloon in town, and only you to switch from one to the other.

The front section of a naturally aspirated V8

The product page offers, as an option, the catalytic front section that follows the manifolds: a 200-cell sport catalytic converter, which keeps the emissions control; 100-cell, whose road use is judged by car and country; or a version without catalytic converter, for the track only.

On an engine without a turbo, this part matters: its design affects filling at high revs. With a remap at a tuner, the product page indicates a real but measured gain; without a remap, it is mainly the sound that evolves. The cat-back alone requires no change to the engine maps.

As for material, 304 stainless steel gives the V8 a full, round tone; titanium, about 40% lighter for the same layout, sounds clearer as the needle nears the red zone, in three finishes at the same price. For the Rog tips there are three finishes, blued titanium, gloss black or chrome, unless you prefer a line without tips. The line is built from your C63's VIN, and your garage fits it with no welding or cutting.

Configure your exhaust.

How the exhaust is put together

On the W204 C63, the Rog cat-back starts just behind the V8's catalytic converters and runs to the tips, with mufflers and flaps on the way. The front section itself, catalytic converters included, is the "Manifold" option on the product page.

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

Three recommended configurations.

• Everyday saloon

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

  For a saloon C63 driven every week: the 6.2 regains its bass unfiltered, the factory catalytic converters stay in service, and the remote keeps the neighbourhood at peace.

  View this configuration

• S204 estate for travelling

  • Stainless steel
  • 200-cell sports catalytic converter
  • Resonator
  • Gloss black tips

  For an S204 estate that sets off loaded: the 200-cell front section frees the top of the register while keeping the emissions control, and the resonator rounds off the V8's voice.

  View this configuration

• Track coupe

  • Brushed titanium
  • Decat
  • Straight pipe

  For a C204 coupe that does track days: catalyst-free front section reserved for the circuit, lighter titanium, and a V8 free to breathe up to its maximum rpm.

  View this configuration

From order to fitting.

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

Questions.

Further reading.

• All our Mercedes-AMG C63 W204 lines
• Our exhausts for V8 engines
• Mercedes-AMG C63 W205 guide, twin-turbo V8
• Mercedes-AMG E63 W212 6.2 V8 guide