I own a 2003 wrx with AEM cold air + 3"HKS Hi-Power exhaust with uppipe

I know that the ecu needs mods to run everything to the potential such as air/fuel mix and what not.

how could I do the mods myself without blowing the motor

I know there are some things I could do but not sure of what they exactly are

thanks in advance

 

dont mod ur ECU urself.. it just leads to blowing ur motor

save up, buy an EM of some form.. cobb ap is probably ur best bet.. but dont mod ur ECU...

 

btw, the intake is not needed... stock is much better!

 

I still have the air duct but the box is gone...anyone have one of those air boxes?

and how well the Manual Boost controllers do? I hear they can be like russian roulette...

 

manual boost controllers are bad joo joo....

 

+1 unless your planning on going over 400 whp