what are the best/cost affective, ways of giving my impreza sport awd a bit more umff????

 

most cost effective way is to sell it and buy a wrx

 

 

i would love to but the insurence would not prove very cost effective! but is there any upgrades that would make a diffrience?

 

not sure mate maybe fit a wrx engine if money is no object but if you crash your screwed

 

Not worth contemplating making a Sport, "Fast" as it were, if you don't have a bit free money.

More "oomph" would generally mean either turbo or super charging it.

A set of cams would, maybe do something, not sure on an N/A boxer though.

Live with it, or buy an early WRX.

If insurance costs are a problem, you only have one option. Live with it.

Borla manifold, IK will make it sound like a turbo and may give some gains, but........