I've a 2003 UK wrx. They don't feel as quick as remember them years ago but I put that down to cars have got faster and more torquey. So with this in mind I Just got a booking with Aonghus power to get the car remapped. I've seen a lot of good reviews of him. I've a de cat stainless steel exhaust on car and just ordered a uprated fuel pump and cosworth panel filter. He will fit a 3 port solenoid on the day . Hopefully this will make the car feel quicker with better power delivery I presume I'll get another 40 or 50 bhp from this. Not a lot considering price but better power delivery I'm hoping