Thanks to all reply....
i think at this stage i'm aiming to achive 300hp-400hp...
now i get the idea of 1.5bar and above so i think i need forged piston..
What i already have right now but not installed yet is...
1. Greddy td06 20g
2. b8 210 head and intake
2. b8 210 conrod
3. b8 210 wiring and ecu
4. haltech e6x (second hand)
my engine setup right now...
b8 180 standard internals
tdo5hr from evo4
adj. fuel regulator
Safc
profec b boosting 1bar
walbro 255lph
custom fmic
Like in this pic...
so i think i will go for forged piston first...
Thank all...
long live b8....