when i bought mine, it had a turbo conversion. As far as I know, as much of the original Orion EFi engine was left in, and only the parts needed to add the turbo were added.

How do I go about declaring that? the engine is still a 1.6, so capacity hasn't changed?

I thought i had to have some report of some kind, declaring that the brakes etc have been upgraded as well, to cope with the extra power?