Comprises of Magnex back-box and a custom-made centre-section and straight-through de-cat pipe. Centre-section and de-cat cost me £180 less than a year ago. The Magnex was on the car when I got it, so I don't know how old it is but it looks pretty new.
Selling because it's too loud for me and I've gone back to standard!
£125 plus...erm...20 quid for postage should do it.