anyone tried and tested these

ie: brakes, coilovers?

http://www.ksport.co.uk/

They are made in the same factory as D2's, the quality is fairly mediocre, some of the 6-pot setups have been known to set them selves on fire alot quicker than OEM calipers after hard use on track

I've heard some good things about the coilover setups but they are fairly basic and you would need to look long and hard at the spring rates as they do tend to be a bit generic on cheaper brands.