I just had MY03 WRX tuned by Steve at maximum motor sport. (ecutek)
and what can i say, i cant be more happy, top bloke and a quality tune!!!
I made 192.7kw and 343.1N.M at 16psi
mods are
VF35
STI TMIC
Walbro 500hp Pump
STI 565cc Injectors
Silicone intake
Car runs very smooth and absolutely hammers
A big thanks to Steve and the team at MMS