I didnt notice any difference at all to my car. With it fitted it idled poorly and wouldnt pass the mot emissions test.

I bought the chip second hand with the understanding it was a 0fac 165 chip. I've asked a friend with a Fiesta running 0fac to try the chip and he had no joy too. I now presume its a buggered chip. Ive done the engine conversion into the Ka myself but without the chip the car runs very well i feel. Im happy with the performance but would like a little more as the actuator is set for a 165 chip so the boost is cut if i dont drive it within safe boost limits and it judders.

Are your chips simple plug and play items? Looking to buy one as soon as i scrape the cash togethor even if they aren't in the sale