remapped

Hi all, Just had my 172 Cup MoT'd today, unfortunately it (should have) failed due to hydrocarbon emissions, which they they think is from a dodgy remap in the past which tallies with the history I have. Does anyone know any companies down south that'd be able to sort the map out/return it to...

I recently bought a 1.5 dci Clio. It is the 106 bhp version and I have had it remapped to 136. I was just wondering what people think are the best mods for power gains? Any advice would be welcome