power commander...

[Grahamm]

the PC5 can store 3(?) different maps, but i would imagine once you have the optimum set up, you wouldn't need to change.

I have a switch on my PCIII to swap between two maps, the basic one which just smooths out the fuelling and the "fun" one which boosts the mid-range power, but at the cost of about 25% of fuel efficiency.

The only time I've really used the latter is when I was doing a Skills Day at Thruxton...