Valved Exhaust System for Porsche Cayenne 955 / 957 (2002-2010)
Configuration
Porsche Cayenne 955 / 957 Valved Exhaust System (2002-2010)
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 front section + 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 |
Which valved exhaust for a Porsche Cayenne 955 or 957?
The Rog system for the Porsche Cayenne 955 and 957 (2002-2010) is a valved cat-back exhaust in 304 stainless steel or titanium, built to your VIN, which identifies the engine before production. Valves open, the Cayenne gains a deep rumble that thickens under load; closed, it goes back to being the discreet SUV of the daily commute.
Sound, options and fitting in detail: our Porsche Cayenne 955 / 957 guide.
The first Cayenne, types 955 then 957, covered the 2002 to 2010 model years with several engines, naturally aspirated and forced-induction, and it is in V8 form that it ages with the most panache. The page gives 340 hp and 460 Nm as the factory figure, without specifying the version: so it is your VIN that will tell us which one is yours, before manufacturing. Its successor, the 958, has a separate page.
Its used prices make it an accessible Porsche SUV, and its engine has a generous voice that the period exhaust smothers. With the valves open, the Rog cat-back turns it into a deep rumble that thickens under load, punctuated by crackles when you lift off; with the valves closed, the Cayenne becomes completely discreet again for the family.
The page offers the catalysed front part under the “Manifold” option; depending on your Cayenne’s engine, it is either a downpipe or a manifold. Combined with an ECU remap, this part takes the reference figure to the 455 hp and 600 Nm published at Stage 2; without one, the first Cayenne mainly gains voice, and the 200-cell version keeps treating emissions.
For fitting, about two hours on a lift, clamps and gaskets, no welding. Factory valves retained if present, otherwise the Rog remote. 304 stainless steel stands up to salt and damp, titanium weighs around 40% less for the same design and comes in brushed, gold or purple; tips in chrome, gloss black or blued titanium.
Porsche Cayenne 955 / 957 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 generations | Porsche Cayenne, types 955 and 957 |
| Engine | Naturally aspirated or forced-induction engines depending on the version; the page’s reference figures: 340 hp and 460 Nm |
| Years | 2002-2010 |
| 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) | Front part with 200-cell or 100-cell catalytic converter (downpipe or manifold depending on the engine), 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 955 / 957 exhaust.
My Cayenne 957 is a Turbo: does this page apply to me?
Both phases of the first Cayenne, from 2002 to 2010, appear on this page, without it specifying the versions covered beyond its 340 hp figure. For a Turbo as for the others, we check the VIN for the system and front part suited to your engine.
What does the page publish at Stage 2 for the Cayenne 955 / 957?
455 hp and 600 Nm, up from 340 hp and 460 Nm stock, with the sport front section and a full ECU remap. Without the front section, the Cayenne’s ECU stays standard.
A first modified Cayenne: how should the vehicle inspection be approached?
Close the valves: the 955 or 957 regains its factory discretion. With the original or 200-cell front part, emissions control is maintained; with the 100-cell, acceptance depends on the car and the rules in your country, and a decat Cayenne is strictly for track use.
Downpipe or manifold: which front part for my Cayenne 955 / 957?
It depends on the engine: on forced-induction versions it is a downpipe; on naturally aspirated ones, a manifold. The page offers both under the same “Manifold” option, and your VIN tells us which one applies to you.
Porsche Cayenne 955 / 957: 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 955 / 957: the complete exhaust system guide
The first Cayenne, especially in V8 form, is ageing with panache, and used prices put a V8 within almost everyone's reach. The engine has a generous voice that the period exhaust smothers: setting it free transforms the experience for 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.
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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.
-
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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