Valved Exhaust System for Porsche Cayenne Coupé Turbo GT 9YB V8 4.0 biturbo (2022+)
Configuration
Porsche Cayenne Coupé Turbo GT 9YB V8 4.0 biturbo Valved Exhaust System (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 Porsche Cayenne Coupé Turbo GT 9YB exhaust in detail.
The sportiest version of the Cayenne, the Coupé Turbo GT carries the 4.0-litre twin-turbo V8 at 640 hp and 850 Nm, with all-wheel drive and a specifically tuned chassis. We document it as 9YB, coupé body, for cars built since 2022; the 550 hp Cayenne Turbo 9YA has its own page, and your VIN decides before manufacturing.
Such an engine has a powerful tone, that roll of eight cylinders in a vee that rumbles every time you lift off. On the stock Turbo GT, it stays polite, almost shy, out of keeping with the violence of its acceleration. With the valves open, the Rog cat-back lets you hear the eight cylinders under load, with a start-up that announces itself and present downshifts; with the valves closed, the coupé SUV becomes a hushed lounge again.
For the Turbo GT, the “Manifold” option actually refers to the catalysed downpipe placed at the turbo outlet. It only affects power with an ECU remap; without one, sound and a few kilos less. Among the sports downpipes, the 200-cell is the one that keeps emissions control.
Under the coupé body, the exhaust fits with clamps and gaskets in about two hours, no welding; the Turbo GT keeps the control of its factory valves, or receives the Rog remote if it has none. As for materials, titanium weighs around 40% less than 304 stainless steel for the same design and comes in brushed, gold or purple; the round tips come in chrome, gloss black or blued titanium.
Porsche Cayenne Coupé Turbo GT 9YB 4.0 V8 biturbo exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN; fitted with clamps and gaskets, no welding, about 2 hours |
|---|---|
| Vehicle and generation | Porsche Cayenne Coupé Turbo GT, type 9YB |
| Engine | 4.0-litre twin-turbo V8, 640 hp and 850 Nm |
| Years | 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 |
| Tips | Chrome, gloss black or blued titanium |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Porsche Cayenne Coupé Turbo GT 9YB 4.0 V8 biturbo exhaust.
Why does the page refer to 9YB for the Cayenne Turbo GT?
Because the Turbo GT only exists as a coupé body, which our source designates as 9YB, not 9YA. The 550 hp Cayenne Turbo 9YA has its own system; the VIN removes any ambiguity before manufacturing.
Does the Cayenne Turbo GT need an ECU remap to benefit from the downpipe?
Yes, it is the map that turns the flow into power. Our sources publish differing Stage 2 figures for the Turbo GT, so we quote none. The cat-back alone, for its part, works without any tuning.
Porsche Cayenne Coupé Turbo GT 9YB V8 4.0 biturbo with a Rog exhaust: what should you know about vehicle inspection?
With the valves closed, it regains the hushed discretion of the standard car. The factory or 200-cell downpipe keeps emissions control. For a 100-cell downpipe, the answer depends on the vehicle and your country’s rules, which accept it or not; stripped of its catalytic converter, the Turbo GT becomes a car reserved for track use.
Does the Turbo GT stay comfortable day to day with the system?
Yes, provided you keep the valves closed: the silencer, designed for cruising, prevents any resonance at a steady speed. The V8 only speaks when you ask it to.
Porsche Cayenne Coupé Turbo GT 9YB 4.0 V8 biturbo: 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
Porsche Cayenne Coupé Turbo GT 9YB: the V8 breaks its silence, the exhaust guide
The Porsche Cayenne Coupé Turbo GT 9YB is the sportiest version of the Cayenne: a 4.0-litre biturbo V8 raised to 640 hp and 850 Nm, in a coupé SUV body with a sharpened chassis. An engine like this has a...
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
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.
-
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.
-
Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
-
Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
Customer builds
Your videos & photos
The Rog lines fitted on our customers' vehicles, in real conditions.
- Builds
- 500+
- Brands
- 28
- Satisfaction
- 4,9
The journal
News & advice
Best valved exhaust for the Audi RS3 8Y
Which valved exhaust for an Audi RS3 8Y? The options compared (sound, material, valves) and the Rog system made to...
Read the articleBest valved exhaust for the Mercedes-AMG A45 / A45 S W177
Which valved exhaust for a Mercedes-AMG A45 or A45 S W177? The options compared (sound, material, valves) and the Rog...
Read the articleBest valved exhaust for the BMW M2 G87
Which valved exhaust for a BMW M2 G87? The options compared (sound, material, valves) and the Rog system made to...
Read the articleExhaust rules: what changes in 2026 and 2027 (Euro 7, noise cameras, MOT)
Euro 7, new-car noise, noise cameras, MOT and vehicle inspection, and models: what really changes in 2026 and 2027 for...
Read the articleChanging your exhaust: what inspections and approvals cost in 9 countries
What the periodic inspection and the check of a modification cost after changing your exhaust, in 9 European countries: official...
Read the articleIs a cat-back exhaust legal in Ireland? What the NCT checks.
A cat-back leaves your factory cat, sensors and OBD as they are; valves closed, very close to stock, valves open,...
Read the articleSports exhaust (sportsummuti) in Estonia: what the tehnoülevaatus checks.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Estonia, how...
Read the articleSports exhaust in Latvia: tehniskā apskate and the CSDD noise limit.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Latvia, how...
Read the articleNo article matches this search.
All articles