Thank you Craig. BTW what do mean by "..or can be activated on its own.."?I have a 2010 CS with the PSE and it automatically activates when you press sport of sports plus or can be activated on its own. It is a distinctly different sound to the standard sound and you can tell when its on and off as it has a more deep sound and is a bit more rumbly with a slight roar. For me it is the perfect option as I can drive the car nice and docile with the other half in it and then when she isnt I can put it into sport and open it up a bit. It isnt as deep or loud as the aftermarkets I have heard (couldnt hear myself speak with a friend with a TUBI) but it is more civilised. As for other gains like power etc I have never driven a MK2 without one so i couldnt say but I am sure there is very little or no gain in power. The exhaust does look different from the rear though.