Mercedes-AMG CLS W218 / X218 Valved Exhaust System (2011-2018)

The Mercedes-AMG CLS W218 / X218 exhaust in detail.

A four-door coupé from the W218 generation, the AMG version of the CLS shows 557 hp and 720 Nm here, with a V8 from Affalterbach’s golden era: generous displacement, volcanic character, rolling thunder. The page covers the 2011 to 2018 model years; the previous CLS W219 generation has its own page.

From the factory, this V8 is calibrated for grand touring buyers: part of its voice sleeps under the mufflers, too discreet for the car’s sporting nature. The Rog cat-back, valved or valve exhaust as you prefer, restores the balance: rumble at idle, volcanic climb under load, bangs on the overrun when you open up; cruising comfort intact when you close.

The system is built to your VIN, which also lets us confirm the exact version of your CLS before manufacturing. It fits in about two hours, with clamps and gaskets, without welding; the factory valve control is retained if it exists, otherwise the Rog remote takes over.

Between the V8 and our system, the page also offers to replace the catalyzed front section, sold under the “Manifold” option. With 200 cells, it keeps emissions control, the right version for a road-going coupé. More open, the 100-cell will be accepted or not depending on the car and the rules in your country, which makes it one for well-informed owners; as for the decat version, it is reserved for track use. Remapped with this front section, the CLS AMG reaches 627 hp and 810 Nm according to our data. Titanium, around 40% lighter than 304 stainless steel, dresses this four-door coupé in brushed, gold or purple.