Was taken off my Rallye a couple of weeks back, I have a receipt within my history from March 2011 at a cost of £300. Looking at MOT's at the time it appears as though this was around 8k miles ago.
This fits very nicely and is a solid system. Noise wise it's subtle and has a nice tone to it. Nothing like a Magnex.
Collection only for the moment as I don't have time to sort out a courier and wait around for them, but I won't rule that out
£150 ono