Its hardly a £200 mod is it?
£300 for a decent kit and quite a bit on fitting costs as a lot of trim has to be removed to get the controller in and setup time, say £250.
Oh an you'll need a spacer from INA at £75 to protect the plastic on the TB.
But what a mod, I'm going for it next year.
With V Power your looking at an octane rating of 109?
Like you say cooler intake temps, like driving on a cold winters morning every day.