If you're only in HE, try All Tyres in Brookwood Avenue, Eastleigh. They are usually good, although I haven't used them for the zed, they were pretty cheap when I had the Seat.
There's loads of places around here, so you should be ok. :mrgreen:
If there the mich pilot sprts like mine there roughly about £140 each. When mine go though I will be replacing them with BF GOODRICH at about £65 - £70 each for the same quality of tyre although is abit softer.