Hi

Recently got a 2001 impreza and the current mods are

Straight through 2.5 " exhaust system including the up pipe to the turbo
An STi7 air filter
Loads of samco hoses
I want a Map and i believe an Ecutek map is best.

is there any other engine mod i can do after this. what sequence to i go in. should it be the fuel pump and 3 port boost solenoid or something else. i cant really do any of this myself so i neded advice on what get done and maybe how much it costs.

thankyou

SD