I have spoken to the guys at the Nissan workshop and they have all pointed me to something.
Now, I know we got the stainless steering coupling, and that helps to improve the S13's dreadfully sloppy steering.
But there is also a MAJOR MAJOR improvement to be had for as little time and money as the stainless disc.
The steering rack bushes!!!
All the guys say that when they do MOT's they notice the rack bushes are worn on nearly every S13 they comer across, including mine!!
Turns out that Nissan have actually changed the part since she was manufactured, I now have the two new bushes and all for less than £20!!!!!!!