I have these on the zed. The 452's seem to last for a long time, grip well in all weather conditions and have only given me a rear end "wobble" on broken tarmac (most tyres would probably struggle with this). They go up to large sizes and I think a 19" rear tyre comes to £115 delivered when I last looked on camskill. So for the money, they are well worth considering.
Everyone raves about them on 350z forums and also heard good things on here.
I recently put FK452s on the front of my VXR and have been very impressed with them, although, I've not had a chance to really put them through their paces, since we've had no dry weather.
The fact they cost me £60 a corner at 225/40/18 is beyond a bargain - They aren't discernibly worse than my old CS3s, yet they are better than half the price!
