Need some help with modding my MY03 WRX. I guess I'm kinda running out of ideas to mod. At the moment I'm looking at ECU and turbo. Anything short of messing around with the engine. Drivability wise as far as turbo is concern my tolerance for turbo lag is VF22 and nothing more.

Current mods I have is,

VF22 (1.3 bar / 19psi)
X Force TBE Stainless steel
Bosch Fuel pump (I think 245l/h ?)
STI 550cc Injectors
Apexi Pod filter
Ecutek 3 Custom Tune
Tein Superstreet Coilovers
Greddy FMIC V-SPL
HKS SSQV
Exedy Sports Organic Clutch
DBA 4000 rotors
Ferodo 2500 Brake pads.

The car is making 179.5kw (240bhp) without the FMIC.