Im thinking of buying a 03 wrx with a ton of mods from the front mount,uppipe, downpipe,exhuast,turbo timer, bost controller to coil overs ect.... it has on problem when you rev the car the rpms lag for a sec then they jump to 2k and sit there they wont go higher but the car hits bosst so the car the rpms are still going up but the rpms on the dash dont go past 2k and when u let of the gas it lags a sec then drops.......what can this be and how can this be fixed thanks guys. :confused:

Do you have a programmed ECU or is it stock? Do you have an aftermarket intake, which one is it?

Cheers,
William T. Knose Jr.
Lead Programmer
Crawford Performance / I-Speed USA