with the greatest respect, between yourself and your friends who have been in business for 30 odd years, I thought between you lot you would have a vague idea of what would be the easiest/ most cost effective conversion to do, as well as alternative non bmw options that would possibly fit. After I had mentioned the 335i twin turbo, your next post came across to me as if you were not sure ,

"Whats that then ? 335i tt ?
At this point it aint going to to be the cheapest option.

Its going to be more how can I get this shifted along the road quickly with a bit of a kick tbh.

I dont want Diesel power.

If its being converted its going have to be something quite quick"

dont take offence, i am only making an observation