Car Still Slow
 

Hi my 97 wrx still seems slower then it was, its not smoking nor loosing oil, i have cleaned the boost controller, what else could it be? could the plugs cause the lack off punch? if so how do i get them out and check them? what am i looking for, any help is greatly appreciated as this is driving me mad.

Have you got a boost gauge? if the car's running ok but just slower might be down on boost,or you could be getting used to the power:)

The spark plug's would make the car run lumpy and crap "is this the case"
need more info about the car and mod's, This will bring the real brain boxes to your aid lol

The scoob has a HKS induction kit, a Fujitsubo system and a Dump valve. I installed a boost gauge at the weekend and its peaking at 12psi and holding 10. just lacks that punch it used to have.

It's probably the hot weather.