Valved Exhaust System for Porsche Panamera / Sport Turismo 971 V8 4.0 biturbo (2017-2023)
Configuration
Porsche Panamera / Sport Turismo 971 V8 4.0 biturbo Valved Exhaust System (2017-2023)
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 Panamera / Sport Turismo 971 V8 exhaust in detail.
At the heart of the Panamera 971 V8 is a 4.0-litre whose two turbos nestle between the cylinder banks, for a shorter gas path and sharper response: 460 hp and 620 Nm in its most accessible form, up to 550 hp and 770 Nm depending on the version. Our page covers 2017 to 2023 without distinguishing between GTS, Turbo and Turbo S; we use your VIN to check before manufacturing.
Deep and dense, this V8’s voice rolls low at idle and swells under load. In the stock Panamera, only a polite murmur remains, out of all proportion to the force pinning you into your seat. With the valves open, the Rog cat-back gives it all the room it needs, an assertive start-up and roll-ons you can hear; with the valves closed, the saloon regains its long-distance silence.
To go beyond sound, the catalysed downpipes following the turbos are replaced under the “Manifold” option. Only an ECU remap turns them into power: our page publishes 640 hp and 900 Nm at Stage 2 for the 460 hp version. Without a map, the benefit is in the sound, and with the 200-cell emissions control remains.
Band clamps and gaskets, no welding, about two hours on a lift: the system slips under the Panamera without changing anything on the V8. Factory valve control retained, or the Rog remote otherwise. Titanium, which removes around 40% of the weight for the same design, comes in brushed, gold or purple, with 304 stainless steel keeping a fuller bass note, and the rear gets four round tips in chrome, gloss black or blued titanium.
Porsche Panamera / Sport Turismo 971 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 |
|---|---|
| Vehicles and generation | Porsche Panamera 971 4.0 twin-turbo V8, saloon and Sport Turismo (Executive not covered) |
| Engine | 4.0-litre twin-turbo V8 with turbos between the banks, 460 to 550 hp and 620 to 770 Nm depending on the version |
| Years | 2017-2023 |
| 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 Panamera / Sport Turismo 971 4.0 V8 biturbo exhaust.
My Panamera 971 V8 is a GTS: can I order this system?
Our page lists the Panamera 971 4.0 without ever certifying the GTS, Turbo or Turbo S. So we claim it for none of them, without ruling them out: your car’s VIN is checked before manufacturing.
Downpipe and ECU remap: what potential for the 460 hp Panamera 971 V8?
Our page credits it with 640 hp and 900 Nm at Stage 2, i.e. 180 hp more. The more powerful versions show figures in US units, which we do not repeat here.
Vehicle inspection: which parts should be kept on a Panamera 971 V8?
Presented with the valves closed, with the factory or 200-cell downpipe, it keeps a saloon voice and its emissions control. A 100-cell downpipe remains dependent on the vehicle and your country’s rules; in decat form, the big GT falls under use reserved for the track.
Does the Panamera Sport Turismo take the same system as the saloon?
Yes. The Panamera 971 and the Panamera Sport Turismo take the same Rog system, with the same engine and the same clamp-and-gasket fitting. The long-wheelbase Executive versions are not covered. Your VIN confirms the version before manufacturing.
With four on board on the motorway, does the equipped Panamera V8 drone?
No: with the valves closed, the flow passes through the silencer chambers and the saloon keeps its touring quietness, even at 130 km/h. The V8 only speaks up when the valves open.
Rog expert guide
Porsche Panamera / Sport Turismo 971 V8 biturbo: a big GT that rumbles, the exhaust system guide
The Porsche Panamera / Sport Turismo 971 combines the space of a large saloon with the performance of a sports car, and its 4.0-litre twin-turbo V8 is at its heart, with 460 hp and 620 Nm in its most accessible...
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 the UK.
The MOT and your exhaust
At the MOT, exhaust noise is judged by ear, with no sound meter: valves closed, your car sounds very close to stock. A cat-back leaves your factory cat and sensors untouched, a 200-cell sports cat keeps emissions control, and the MOT tester decides.
On the road
Valves closed around town, your car sounds very close to stock, and you open them whenever you like. Where councils use noise cameras, they target behaviour such as revving and racing.
Your documents
Each system is built from the VIN on your V5C, and an exhaust isn't one of the changes you record on it. We send the technical documentation free on request, for the MOT or for your insurer.
Your insurance
Insurers usually want to know about modifications, so let yours know: 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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