After changing a wheel bearing and replacing a shock absorber took the 4 down to Powerstation to get the wheel alignment sorted out.Anyway while chating away I discovered that Powerstation are about to bring out a new suspension kit for the GT4(St205) to rival Tein and provide suspension for a four at a reasonable price.They were a bit hush/hush about details but a street kit wil cost £900 & vat and a special track kit will cost £1200 & vat.The whole product has been specially desingned for the St205 from scratch after they noticed a gap in the market for it and from amount of peeps bringing in fours.
I will keep you informed when I know more.Could end up trialling it myself
http://www.powerstation.org.uk/