Paul at RS tuning is your man, pretty certain he was one of the first guys I know of to develop the supercharger kit for the clios.
I did a passenger lap in his old white ph1 172 demo car which was over 300bhp at time (low comp internals) and it was epic!
The power delivery is so linear compared to a turbocharged Clio that it just felt like your average Clio with a much bigger engine haha