I have a question that i'm afraid no may have an answer for. I just bought a '07 Honda Fit a few months ago and found out maybe 6 weeks ago that the new '09 Honda Fit engines will have i-Vtec where my car only has Vtec, not to mention the kind seen on K20A3 engines that enage around 2300rpm. So i'm wondering if anyone has any idea if you could swap the head from a '09 honda fit and put it on a '07 honda fit and if i'd have to change my ecu to that of an '09 honda fit for the VTC to kick in. I read a few post about people swapping k20a2 heads onto k20a3 engines and it seemed pretty easy. In case anyone is interested the power difference between the two engines isn't very much, about 10hp difference, the big difference is where the hp peaks '07 engine peaks at 5800rpm and redlines at 6500rpm, '09 engine peaks at 6600rpm (i don't know where it redlines hopefully above 7000rpm). So yea any help would be greatly appreciated.