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I put the RS Tuner 98 RON map onto the car and its SO much better before 5k, you actually feel a pull from 3500 now because the flat spot is gone. Cold starting it idles a bit higher and isn't as chuggy, plus the hot idle doesn't seem to be as rough =]
I'll bare that in mind. Your not a mile away and the stories of the RS tuner making the ECU it's own put me off. That and not having a reliable laptop.
I flashed my HDI diesel map fine but I didn't enjoy the experience of doing it myself.
That's the bit that does not appeal to me at all. As most Cups end up as track cars I feel it would be a pants thing to do to the next owner down the line!