Valved Exhaust System for Mercedes-AMG A35 W177 2.0 turbo (2019+)
Configuration
Mercedes-AMG A35 W177 Valved Exhaust System (2019+)
Valves
Operated by remote control, factory-paired.
Estimated at 0.50 m from the outlet, 45°, 2,000 rpm with a warm engine. Allow ± 2 dB depending on the engine and measuring point. A 3 dB difference is audible in a direct comparison; 10 dB sounds roughly twice as loud.
Configuration guide
Sound intensity with the valves open, on a scale of 0 to 10.
| Configuration | Intensity |
|---|---|
| Decat downpipe + Rog cat-back | 10/10 |
| 100-cell sports catalytic converter + Rog cat-back | 9/10 |
| 200-cell sports catalytic converter + Rog cat-back | 8/10 |
| Rog cat-back only, factory catalytic converter retained | 7/10 |
| Factory exhaust, for comparison | 3/10 |
The Mercedes-AMG A35 W177 exhaust in detail.
One clarification comes up often: the A35 W177’s M260 is not the engine hand-built in Affalterbach that the A45 S receives. It is Mercedes’ 2.0-litre turbo, reworked by AMG, with a twin-scroll turbo and direct injection: 306 hp between 5,800 and 6,100 rpm, 400 Nm from 3,000 rpm, and 4.7 seconds from 0 to 100 km/h with the 7G-DCT and 4MATIC Performance drive, on the A35s built since 2019 that this page covers.
The temperament is definitely there; it is the factory exhaust, particulate filter included, that keeps it on a leash. Our valved cat-back gives it back a full tone and a frank climb, with crackles on the overrun when the valves are open. It is not a V8 rumble, and that is not the aim: it is the eager voice of a four-cylinder that pulls hard. Closed again, the valves bring the compact back to its standard level, or nearly.
The system is produced to your A35’s VIN and bolts on in place of the old one: clamps, gaskets, about two hours in the workshop, nothing to cut. The AMG driving modes stay in charge if the car has factory valves; failing that, the Rog remote controls the opening, with its unit hidden in the trunk.
On this turbo engine, the “Manifold” option on this page corresponds to the downpipe and its catalytic converter, the second bottleneck after the muffler. Taken with 200 cells, this downpipe leaves the A35’s emissions control intact; with 100 cells, it all depends on the car and the rules in your country, while the decat variant is reserved for track use. It is the ECU remap that converts this flow into power; without it, only the sound changes. 304 stainless steel or titanium around 40% lighter, in three finishes.
Mercedes-AMG A35 W177 2.0 turbo exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicle and chassis code | Mercedes-AMG A35 W177 2.0 turbo |
| Engine | M260, 2.0-litre twin-scroll turbo four-cylinder, 306 hp and 400 Nm |
| Years | 2019+ |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | AMG drive modes with factory valves, otherwise Rog remote |
| Front section (option) | Downpipe with 200-cell or 100-cell catalytic converter, or decat |
| Fitting | Clamps and gaskets, no welding, about 2 hours on a lift |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Mercedes-AMG A35 W177 2.0 turbo exhaust.
Does this system also fit the A45 or the A200 W177?
No: each has its own page. This page, for its part, covers the A35 W177 2.0 turbo built since 2019. For a particular body style or model year, send us your VIN: we check before starting manufacturing.
What does an A35 W177 deliver when remapped with the downpipe?
The page publishes Stage 2 figures of 370 hp and 510 Nm, against 306 hp and 400 Nm stock, with a full ECU remap by an approved tuner. The cat-back on its own does not require it: the Mercedes ECU handles it without modification.
Vehicle inspection: which options should be kept on an A35?
Cat-back alone or 200-cell downpipe, valves closed: the catalytic converter does its work and the AMG stays close to its stock volume. The 100-cell will be accepted or not depending on the vehicle and local regulations. In decat form, the car belongs on the circuit alone.
Does the A35 drone at 130 km/h with the Rog system?
With the valves shut, the flow passes through the muffler volume designed for cruising, and the AMG eats up the miles without resonance. You reopen the valves for a mountain road or an early-morning departure, without changing mode if you use the remote.
Mercedes-AMG A35 W177 2.0 turbo: straight pipe or resonator?
On this model, two characters at the same price: the straight pipe for the raw sound of your engine, unfiltered, or the resonator for a rounder and slightly softer voice. Either way, the exhaust stays fully sporty. Learn more: Exhaust resonator: what does it do? Straight pipe or resonator, which sound to choose.
Rog expert guide
Mercedes A35 AMG W177: unleashing the M260, the complete exhaust system guide
The A35 AMG is the gateway to AMG, and there is nothing tradesman's entrance about it: 306 hp, variable all-wheel drive and a dual-clutch transmission built for far more. What it lacks is a voice. This guide sets out, for...
In detail
Rog Advisor
A question about this exhaust?
Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
The Rog Advisor is an automated assistant trained on our product pages and answers. For an important decision, write to us: we confirm by e-mail.
Unsure about your configuration? Talk to us before you order. We know your car. Write to us at contact@rogmotorsport.com: we reply in writing, in English, within 24 hours. Email us
Your country
Rog in Canada.
Inspections in Canada
A Rog cat-back leaves your factory catalytic converter, oxygen sensors and OBD untouched, and valves closed, your car sounds very close to stock at a safety inspection. Sport cats follow your province's rules, the catless version is for the track only, and your province decides.
On the road
Valves closed around town, your car sounds very close to stock, and you open them whenever you like.
Your documents
Each system is built from the VIN on your vehicle registration, and we send its technical documentation free on request, for an inspection or for your insurer.
Your insurance
Tell your insurer before installation: our free technical documentation makes it easy.
Reviews imported from our previous system and translated from French; verified purchases carry the badge.
Rog presentation film: choosing your vehicle, Standard or Equal Length design, stainless steel or titanium, Z-Pipe, controlled valves, titanium and tip finishes, and support from choosing your configuration through to shipping.
THE Rog CRAFT
Our process.
From the first bend to the last check. The same care at every step.
-
Design
Designed for your vehicle.
Geometry matched to your model, carefully studied bends and precise mounting points. Everything starts with accurate design.
-
Manufacture
Crafted with precision.
Tube bending, part fitting and TIG welding: every joint receives the same care.
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Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
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Assembly
Every part in its place.
Components are assembled and adjusted. On valved systems, the mechanism is fitted, set up and tested.
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Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
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Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
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