I've just got a 1.8 impreza wagon what can do to get the best out of my beast ;)
 

I know I need to change the exaust and air filter not she what other mods that will help

2.0 Sti engine & turbo. This may sound expensive but you may be surprised:ninja:

Is this who I think it is??

Sounds gooooood

Yea cath the one and only ;)

there is little or no tuning parts available for any of the N/A blocks unfortunately....

All we found for the 2.0 sport we had was a decat exhaust (also unequal headers). And air filter made some difference to the pick up but it really anything with doing