Alfa Romeo Stelvio: the complete exhaust system guide
The Stelvio is the SUV that drives like a sports saloon, true to the Biscione. Its factory voice, however, is anonymous. Our exhaust system gives it back an assertive Latin tone, with family-friendly quiet always available with the valves closed. Here, point by point, is how to choose the exhaust for your Alfa Romeo Stelvio 949 Turbo, and what each option really changes.
Written by ROG Motorsport · Updated
Your ROG exhaust for the Alfa Romeo Stelvio 949 Turbo
From €2,190 in stainless steel, €2,690 in titanium
Configure my exhaust- Vehicles
- Alfa Romeo Stelvio 949 2.0 Turbo (2017-2021)
- Engine
- 200 to 280 hp · 330 to 400 Nm, depending on the version
- Exhaust
- Valved cat-back, built for your VIN
- Material
- 304 stainless steel or titanium
- Front section
- Optional: catted downpipe with 200 or 100 cells, or decat
- Valves
- ROG remote, or factory control if your vehicle has it
- Lead time
- 20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship
Closely related versions have their own guide: Alfa Romeo 4C 960, Alfa Romeo 8C Competizione V8, Alfa Romeo Giulia 2.0 Turbo, Alfa Romeo Giulia Quadrifoglio 2.9 V6.
Your Alfa Romeo's engine: temperament is in its genes
The engine in your Stelvio carries a heritage few mainstream brands can claim: at Alfa Romeo, engineering has always been a matter of temperament. Modern turbo engines are efficient but tamed by regulations: the factory sound does not tell the legend of the Biscione.
The ROG exhaust tells that story: a full, Latin tone, assertive character under load, and crackles on the overrun with the valves open. With the valves closed, everyday discretion is preserved.
How the exhaust on your Alfa Romeo Stelvio 949 Turbo is put together
An exhaust system is best understood in two parts. Here is what each one does, and what ROG replaces.
The cat-back is the complete exhaust system
It is everything you can see under your Alfa Romeo Stelvio 949 Turbo, from the outlet of the front section to the tips: pipes, silencers, valves. Routing, silencer, valves: this is where the sound is shaped, and where we focus our research and development.
The front section, where the catalytic converter sits
On your Alfa Romeo Stelvio 949 Turbo, it is the downpipe, the pipe leading from the turbo. It contains the factory catalytic converter: the second restriction in the exhaust, after the silencer. Changing this part remains a choice: it pays off mainly with an ECU remap, which turns the freed-up flow into power.
The figures for your Alfa Romeo Stelvio 949 Turbo
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.
Power
Torque
Published factory and Stage 2 figures. Factory figures vary by version; Stage 2 figures published for the 280 hp version.
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 Alfa Romeo Stelvio 949 Turbo, and that is what we recommend.
To be completely transparent: on a modern turbo engine, the exhaust alone mainly improves breathing and sound. The significant power gains come with Stage 2, the exhaust plus an ECU remap at an approved tuning centre.
Configuring your exhaust, step by step
4 choices, in the same order as the product page configurator.
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Step 1 of 4: Material: stainless steel or titanium
For your Alfa Romeo Stelvio 949 Turbo, the exhaust costs €2,190 in stainless steel and €2,690 in titanium.
304 stainless steel
2 190 €
- Weight
- Baseline
- Sound
- Full and rounded
Durable, corrosion-resistant, with a rounded, full sound: the most popular option.
Titanium
2 690 €
- 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.
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Step 2 of 4: Front section: downpipe and catalytic converter
Optional: the downpipe on your Alfa Romeo Stelvio 949 Turbo, with its catalytic converter. Sound rating out of 10, valves open: the factory exhaust sits at 3.
Cat-back only
Included
7/10Factory emissions control
Nothing changes at the front: the cat-back alone is already enough to change the car.
200-cell sports catalytic converter
+740 €
8/10Road use and French MOT
The everyday compromise: emissions control is still there, and breathing improves noticeably.
100-cell sports catalytic converter
+740 €
9/10French MOT pass not guaranteed
One step further: more flow, a more aggressive sound, reduced emissions control.
Decat
+470 €
10/10Track use only
Everything unleashed: maximum flow and unrestrained sound, for the track.
Sound intensity, on a scale of 0 to 10
- 10/10Decat downpipe + ROG cat-back
- 9/10100-cell sports catalytic converter + ROG cat-back
- 8/10200-cell sports catalytic converter + ROG cat-back
- 7/10ROG cat-back only, factory catalytic converter retained
- 3/10Factory exhaust, for comparison
Valves open. With the valves closed, every configuration becomes discreet again.
What about the engine warning light? It can appear with a sports catalytic converter: the downstream oxygen sensor reads a different level of cleaning from the factory unit. It is not an engine fault, and it is dealt with by an ECU remap or a diagnostic tool. With a decat, an ECU remap becomes necessary. If it happens to you, call us and we will point you in the right direction. Passing the French MOT with a sports exhaust.
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Step 3 of 4: Valves: ROG remote or factory control
Two ways to control the valves on your Alfa Romeo Stelvio 949 Turbo.
ROG remote
The simplest solution: a control unit in the boot 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.
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Step 4 of 4: Tips: the visual signature
Match the tips to the style of your Alfa Romeo Stelvio 949 Turbo, understated or bold. A particular finish in mind? Send us a photo and we will look at it together.
- Stainless steel
- Black
- Carbon
- Blued titanium
The ROG sound signature on your Alfa Romeo
Our optimised routing gives the engine a full, Latin tone, far richer than the thin factory sound, with crisp crackles on the overrun with the valves open. With the valves closed, everyday discretion is intact. Alfa temperament, your way.
From order to fitting
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Configuration
You choose the options for your Alfa Romeo Stelvio 949 Turbo and enter its VIN, from box E of the registration certificate.
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Check
We confirm compatibility with your car before we build it.
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Manufacturing
Made to order, for your Alfa Romeo Stelvio 949 Turbo.
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Delivery
Free, insured delivery, with tracking sent on dispatch.
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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 delivery
- Payment
- In instalments with Klarna
- 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 Alfa Romeo Stelvio 949 Turbo
-
Daily driving
2 190 €
- Stainless
- Cat-back only
- ROG remote
Your Alfa Romeo Stelvio 949 Turbo stays easy to live with, the factory emissions control is retained, and you open the valves whenever you decide.
View this configuration -
Fast road
3 430 €
- Titanium
- 200-cell downpipe
- ECU remap
For great roads: more voice and more response, while staying road-friendly.
View this configuration -
Track
3 160 €
- 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 five minutes on the phone.
Alfa Romeo Stelvio 949 Turbo: your questions
How much power does an exhaust system add to the Alfa Romeo Stelvio 949 Turbo?
As standard, the Alfa Romeo Stelvio 949 Turbo produces from 200 to 280 hp and 330 to 400 Nm, depending on the version. Without a remap, the exhaust transforms the voice and lightens the rear; it is the ECU remap that increases power. With a Stage 2 build, the published figures for the 280 hp version reach 326 hp and 483 Nm.
Stainless steel or titanium: which material for the Alfa Romeo Stelvio 949 Turbo?
For the Alfa Romeo Stelvio 949 Turbo, the ROG exhaust costs €2,190 in stainless steel and €2,690 in titanium. Choose stainless steel for value for money and a rounded sound, titanium to save around 40% in weight and get a clearer tone.
Do you need to replace the catalytic converter on the Alfa Romeo Stelvio 949 Turbo?
No, the cat-back alone already does most of the work on the Alfa Romeo Stelvio 949 Turbo. The downpipe option is for those tuning the engine: 200 cells to stay road-friendly, 100 cells or decat for the track.
Will the Alfa Romeo Stelvio 949 Turbo pass the French MOT with a ROG exhaust?
The cat-back only and the 200-cell sports catalytic converter both keep emissions control: that is the configuration to present, with the valves closed. With the 100-cell converter a pass becomes uncertain, and the decat fails the emissions test on the Alfa Romeo Stelvio 949 Turbo.
How is the ROG exhaust fitted to the Alfa Romeo Stelvio 949 Turbo?
Fitting needs no welding or cutting and takes two hours on average on a lift. We check compatibility with the VIN of your Alfa Romeo Stelvio 949 Turbo before manufacturing.
What does a ROG exhaust cost for the Alfa Romeo Stelvio 949 Turbo, and how long does it take?
From €2,190 to €3,430 depending on the configuration. Allow 20 working days from order confirmation to delivery. Free delivery in Europe, 3-year warranty.
Unsure about your configuration? Give us a call.
Stainless steel or titanium, cat-back only or the complete system: the right choice depends on how you drive and on your Alfa Romeo Stelvio 949 Turbo. We take the time to talk it through before you order, with a reply within 24 hours. We are not here to sell to you over the phone: we help you choose, even if that means a cheaper option because it suits the way you drive.
Behind every ROG exhaust is a French team you can actually reach, who know the cars they talk about. More than 500 exhaust systems fitted and a rating of 4.9 out of 5.
Further reading
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