There are no currently available commercial turbo kits I am aware of, turboing a micra is either a DIY affair as far as manifolds and fuel rails and the such are concerned, or you should wait until another member is selling their setup. The highest power I've seen is @Stani's last build at 160hp, I think that was with stock internals? Pretty Sure @PollyP's is at 160hp too but thats on a forged engine (although I think that turbo setup ran on stock internals too?).
Polly and Stani have good blogs with regards to turbocharging.
