Is it possible to upgrade a Terzo to around 370bhp (not sure of standard bhp of this model - 208bhp?) by simply adding a Larger Turbo (i.e. some kind of Garrett [B22?]) + FMIC & Remap?

Reason I ask is that I know someone who claims to have done this and got this output. I have my views on whether this is possible with only these mods - just want to know what people in the know think?

Surely additional items would be needed like (and not limited to):
Uprated Injectors
Uprated Fuel Pump
Exhaust Modifications
Uprated Airfilter
ECU - not sure if standard one can be remapped on this model or if uprated one needs fitting?

 

I imagine it would be possible, by running mega boost but I dont think it would last long, also the injectors assuming standard would probably struggle to cope with enough juice for that, so in a word not reliably