Valved Exhaust System for Ford Mustang EcoBoost S550 2.3 (2018-2022)
Configuration
Ford Mustang EcoBoost S550 2.3 Valved Exhaust System (2018-2022)
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 Ford Mustang EcoBoost S550 exhaust (2018 to 2022) in detail.
Unleashed, the four-cylinder in the facelifted Mustang EcoBoost comes as a surprise: a gravelly, grainy tone you would not expect under that bonnet, with the whoosh of the turbo blending in under load. From the factory, the 2018 to 2022 exhaust turns it into a neutral hum, designed for cabin quiet rather than the image of a galloping horse.
After the facelift, the 2.3-litre turbo produces 290 hp and 440 Nm, with torque as strong as ever from low revs. This page covers that phase; the 2015 to 2017 phase 1, the V8 GT and the Focus RS have their own pages. For 2023 onwards nothing is established: your VIN, checked before manufacturing, decides.
With the valves open, the Rog valved cat-back gives the Mustang a full, aggressive voice, acceleration you can hear and decelerations punctuated by crackles; closed, it lets the car cross town and cover long stages without fuss. Fitting is done without welding, using clamps and gaskets, in about two hours, with the factory valve control if the car has one, the Rog remote otherwise.
Under the “Manifold” option, the page sells the 2.3-litre’s downpipe, which carries the catalytic converter. On its own, it adds no horsepower, only sound and a little less weight; an ECU remap is needed to extract power from it. For the facelifted EcoBoost, the 200-cell downpipe keeps an effective catalytic converter, the 100-cell one will be accepted or not depending on the car and the rules in your country, and the decat version is reserved for track use, for Mustangs that spend their Saturdays there. 304 stainless steel, round and durable, or titanium, around 40% lighter and finished in brushed, gold or purple, exit through round tips.
Ford Mustang EcoBoost S550 2.3 exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicles and chassis code | Ford Mustang EcoBoost, S550 generation, phase 2, Fastback and convertible |
| Engine | EcoBoost, 2.3-litre turbocharged four-cylinder, 290 hp and 440 Nm |
| Years | 2018-2022 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control if the car has it, otherwise the Rog remote |
| Front section (option) | Downpipe with 200-cell or 100-cell catalytic converter, or decat (“Manifold” option on this page) |
| Fitting | Clamps and gaskets, no welding, about 2 hours |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Ford Mustang EcoBoost S550 2.3 exhaust.
Does a 2023 Mustang EcoBoost S550 2.3 fall under this page?
The page covers phase 2 from 2018 to 2022; beyond that, compatibility is not established, and it is your car’s VIN, checked before manufacturing, that will tell whether the facelifted S550 system fits.
Does the 290 hp Mustang EcoBoost S550 need an ECU remap?
The cat-back alone runs very well with the phase 2 factory ECU. An ECU remap becomes useful if you add the downpipe, the only way to turn this flow into power; the result then depends on the chosen tune.
Ford Mustang EcoBoost S550 2.3 with a Rog exhaust: what should you know about vehicle inspection?
The simplest configuration: valves closed, factory catalytic converter or 200-cell downpipe. The 2.3-litre then presents itself with a voice close to stock. In 100-cell form, the outcome depends on the vehicle and the country’s regulations; the decat version is reserved for the track.
On the facelifted Mustang EcoBoost S550, factory control or Rog remote?
On an EcoBoost fitted with factory valves, the drive modes continue to control the opening, as before fitting. Without factory valves, you choose the Rog remote, with its small box hidden in the Mustang’s boot.
Does the Mustang S550 convertible take the same system as the Fastback?
Yes. The S550 Fastback and convertible take the same Rog system, like the original Ford Performance sports exhaust. On the convertible, a floor brace is added under the body: we check the routing against your VIN before manufacturing.
Ford Mustang EcoBoost S550 2.3: Does a valved exhaust system drone?
No. With the valves closed, the gases flow through the whole rear silencer and the cabin stays calm at a steady speed. Our Rog exhausts are designed to avoid drone. Learn more: Why our systems stay calm on the motorway.
Rog expert guide
Ford Mustang EcoBoost S550: the four-cylinder Mustang, the exhaust system guide
Both before and after its facelift, the Mustang EcoBoost S550 keeps the silhouette, rear-wheel drive and playful temperament of the line, with a 2.3-litre turbocharged four-cylinder: 317 hp from 2015 to 2017, 290 hp from 2018 to 2022. Yet the...
In detail
Rog Advisor
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Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
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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.
-
Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
-
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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