ok chatting with a mate who is going to be selling his RX7 for a nice Escort Cossie

what are the advantages/dis-advantages or big turbo VS small turbo.

I told him if he wants over 330bhp to go for the big turbo....but am i right? i thought changing a small turbo to large was an expesive job, new loom, ecu, turbo etc.

Cheers

Paul