Thanks for the replies guys, all good info.
TBH it isn't for me it's for a mate who has a remapped 2.5 STI and is looking for the next step.
He has been offered a package that includes a
400+ BHP Owen developments turbo,
ceramic coated headers
SFS induction hose
650cc injectors
mapping
to be honest I wondered if there was a better option out there as I didn't know much about Owen Developments, thats why I asked about pistons over ceramic headers.
After considering his options he is thinking about going for pistons and rods and then to pick a turbo.
What do you all think to the above options/any recomendations would be appreciated as I don't know much about 2.5 tuning and John is new to Scoobies. Looking for a fast road car and has all the suspension and brake mods already.
Sorry for the confusion.
Damo