Dear YRV_driver
about the engine modification, I did following changed
HKS power flow and metal intake pipe
Apexi AFC = super air flow controller
Blitz Blow off Valve
FGK Power Getter exshaust
after above modification, the boost without the boost controller is about 0.9bar ~ 1.0bar (not stable enough). If have boost controller. I am sure will get 1.2 bar and make it more stable. But the coming stage, I am planning to put a body kit to make my YRV outlook more unique. For more information about the body kit that offering from Japan you can check this site out
http://www.vixi.co.jp/custom/yrv/aeromaster.html
enjoy
Paul