AUDM 08 WRX 350hp/250kw atw mods list concerns
firstly I am in australia, everything is expensive and common fuel for performance cars is BP ultimate 98 octane.
I have a 08 wrx and looking to get around 350hp atw/250-270kw atw.
Current engine mods are;
-process west tmic
-grimmspeed 3 port
-turbo xs up pipe
-aem cold air intake
-silicone turbo inlet
-turbosmart full recirc bov
-tuned with 177kw atw.
Future mods i want are;
-blouch dom 1.5xtr
-tomioka unequal length headers
-deatschwerks 850cc injector
-deatschwerks dw300 fuel pump
-custom mid pipe, going into oem axle back
problem is the tuner wont tune the car unless i also get forged pistons. apparently a few 08 wrx bottoms ends he tuned with blouch turbo died because of the differnt pistons the 08's have. and this tuner, almost everyone recommends.
so he recommends i get forged pistons,stud,gaskets(thats all to make it more reliable). and this is gonna cost the same price as a short block plus all labour in and out in australia.
Is it really necessary to have those parts for the car to be reliable? is there more i need?
anyone suggest what i need/dont need altogether?
thanks in advance