I phoned R-Sport the other week. The ECU is ready and available and I was told is 200 notes. It is a direct replacement, not a chip upgrade or piggyback system. The bloke said it removed the flat spot at the bottom of the rev range, improved fuel consumption and gave more power. He mentioned 20% but I find that pretty hard to believe. Would like to see some figures. They reckoned that any Renault dealership should be able to fit the ECU. Oh and it is Renault approved. The bloke I spoke to said that things have taken longer than first expected because they have had to go for Renault approval. He was a bit vague about what other mods they had up their sleeve though.