Haha co-incidence! I fitted one yesterday.... The trickiest part of fitting was getting the screws out of the ecu. Its easy enough to take out but mine was a sod to open as all the screws and rusted into place. One was drilled out and the head snapped off another. Be careful getting the old chip out though, its very easy to scratch the board or hurt a resistor.
I may have gotten the wrong one unfortunately, this one was for the Bosch ecu. I thought there was only bosch but apparently after taking it off mine is a T/A ecu.
Put the chip in and my car suffered, felt rich and boggy and ilde was all over the shop. When i was i driving i got done by a saxo!!! :embarassed: Sooo ashamed! Anyway swapped back to the original tonight and its loads better again. that saxo would have gotten a piece i tell you....
So i have emailed the man asked about the difference in ECUs and anything else i might have missed and will withhold judgement until i have had chance to chat to him about it.