do you have any idea if the sti downpipe would be the same as a turbo legacy setup?

and if it isn't would it fit?

 

turbo legacies have two turbos - of a different size and configuration to the VF series and a totally different exhaust layout aswell.
No commonality I'm afraid - you would be best speaking to scoobysport / bpm for sti downpipes.

Paul W