Valved Exhaust System for Porsche Boxster / Cayman 987.1 2.7 / 3.4 (2005-2008)
Configuration
Porsche Boxster / Cayman 987.1 2.7 / 3.4 Valved Exhaust System (2005-2008)
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 manifolds + 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 Boxster / Cayman 987.1 exhaust in detail.
With the roof down, the Boxster 987.1 should do everything to let you hear its engine: a naturally aspirated flat-six mounted mid-ship, right behind your shoulders. The factory exhaust, on the contrary, works hard to keep it at a distance. With the valves open, the Rog cat-back gives it a clearer, more present voice all the way to the top of the rev counter, a real pleasure on a country road; with the valves closed, the roadster regains its calm for town or late journeys home.
The page covers the Boxster 987.1 from 2005 to 2008, in both 2.7-litre and 3.4-litre form: from 240 to 295 hp and from 270 to 340 Nm depending on the version. It covers the Boxster and the Cayman of this generation, which take the same system. The 987.2 and 981 have their own page.
The manifolds, with integrated catalytic converter, are ordered under the “Manifold” option. On this naturally aspirated flat-six, they bring only a modest gain, 3 to 8%, and only with an ECU remap; the page lists up to 326 hp and 378 Nm in Stage 2 for the 295 hp version. Chosen in 200-cell form, they keep emissions control.
The roadster needs only clamps and gaskets, without welding, for about two hours of fitting on a lift. Factory valves retained if they exist, otherwise the Rog remote. As for material, titanium saves around 40% for the same design and comes in brushed, gold or purple, while 304 stainless steel plays on toughness; the tips can be chosen in chrome, gloss black or blued titanium.
Porsche Boxster / Cayman 2.7 / 3.4 type 987.1 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 Boxster and Cayman 2.7 and 3.4, type 987.1 |
| Engine | 2.7 or 3.4-litre naturally aspirated flat-six, 240 to 295 hp and 270 to 340 Nm depending on the version |
| Years | 2005-2008 |
| 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) | Manifolds with 200-cell or 100-cell catalytic converters, 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 Boxster / Cayman 2.7 / 3.4 type 987.1 exhaust.
Does the Boxster 987.1 system fit the Cayman of the same generation?
Yes. The Boxster and the Cayman 987.1 share the flat-six and the same Rog system, as on our 987.2, 981 and 718 pages. Your VIN is only used to confirm the version and model year before manufacturing.
Boxster 2.7 or 3.4: what does an ECU remap with sport manifolds change?
According to the page, the 2.7-litre goes from 240 or 245 hp to 268 hp at Stage 2, and the 295 hp version reaches 326 hp and 378 Nm. Ordered on its own, the cat-back leaves the roadster’s ECU as it is.
Porsche Boxster 987.1 2.7 / 3.4 with a Rog exhaust: what should you know about vehicle inspection?
Nothing is promised in advance, but presented with the valves closed, it returns to a sound close to standard. Factory or 200-cell manifolds retain emissions control; the 100-cell version is accepted or not depending on the vehicle and your country’s rules, and a decat Boxster is reserved for track use.
Is the Boxster 987.1 still pleasant on a long journey?
Yes, with the valves closed: the silencer, designed for cruising, prevents drone at a steady speed, roof up or down. You open the valves again as you leave the motorway, where the flat-six has something to say.
Rog expert guide
Porsche Boxster / Cayman type 987.1: a flat-six at your back, the exhaust guide
The Boxster 987.1 puts a naturally aspirated flat-six right behind your shoulders, in 2.7 or 3.4-litre form, in a mid-engined roadster with remarkable balance. With the roof down, everything should invite you to listen to this engine, and 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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