My UK bugeye prodrive edition had forged pistons as did all version 7 STis, small port heads were certainly on the UK cars too.
Version 8 saw the introduction of the Hypercuretic pistons.
Bugeye STis IMO (and im bias) have also got better with age. I think they look superb, probably better today than they ever did.

 

Almost, hypereutectic.
The bug STI did have forged pistons as others have said and thus an inherently strong engine. I'm a blobeye owner myself but have to concede there is something alluring about a nice bug STI. They have certainly aged well and I would have no qualms about seeking out a nice example if I was on the lookout for one.

 

Bugger, knew I'd *** that up

 

I wish I could afford yer black sti bug it's just wat I want i wud have that over any evos I have seen yet. Do the jdm bugs come with a equal length manifold?

 

No, JDM bugs were all single scroll to my knowledge.

 

So what's the difference between fully forged pistons and hyperhfbsufbfmdh ones?

I'm guessing the latter isn't as strong as fully forged?

 

Correct.

 

Correct