I'm up in Westerham, Kent with a PSE equipped soundtrack if you wanted a trip over. I bought mine back in March, I was and still am completely underwhelmed by the noise, have looked at some alternatives but haven't ever removed my wallet from its hiding place !
I did recently email Gert at Carnewal who was very helpful, his reply is below;
If you already have the PSE on your 987-2 Spyder and you want more sound and HP, I would suggest to upgrade your existing manifolds and top the installation off with our PSE remote controller. The P87017 “Exchange Sport Cats” is a pair of original manifolds of which the 2x 400 cell elements are removed and the primary elements are replaced with HJS 200 cell sport cats, the HD version which is especially developed for Porsche DFI and high performance engines. This upgrade gives your Spyder 12-15HP extra and an increase of the sound with 25-30%. In other words, in the PSE silent mode, the sound will be louder but in the PSE/loud mode, the sound will also increase. This upgrade is 100% ok for emission checks and does not throw CEL’s. A remap is not necessary. On the outside, everything looks like original. Unlike aftermarket manifolds -mostly made in China- the ground clearance is not reduced. Due to the exchange system, we need to know the mileage of your exhaust. That way we can send a matching manifold with similar km/miles and we know beforehand what we will get back. That way we avoid that we send a nearly new ones and get manifolds back with 200K mls or vice versa . The price for the 987-2 exchange cats is 995 euro Shipping to the UK : 25 euro Total : 1020 +21%vat = 1234,20 euro. The core charge is an extra 750 euro and refunded after you return your manifolds. The p97084 “PSE remote controller” is a plug and play unit with a remote control that allows you to switch the exhaust from loud to silent at any time. It has a memory function so it always remembers the last setting. That way, you don’t have to start pushing buttons, every time you start the car. Keeping the exhaust in the loud setting will increase the sound as the DME will adjust itself to the open, freer flowing exhaust. The price for the PSE remote is 175 euro +21%vat = 211,75 euro. [link=http://www.carnewal.com/products/P87/p97084/PSE-Manual-Control]http://www.carnewal.com/products/P87/p97084/PSE-Manual-Control[/link]
I would guess if you don't have PSE then there may be additional bits required, personally the first thing I do every drive is press Sport and PSE, I have bought a sports car after all [
] so perhaps you only need one volume level for the exhaust ??
He wouldn't offer a drive and fit facility in his workshop so the manifolds would need to be fitted locally, the only aspect that has stopped me so far is that its an exchange so I couldn't retain the original should I want to refit. I haven't yet researched any further of alternatives as an outright purchase, perhaps others will know ?
Perhaps we could club together for a Bulk Buy ???
Martin