Im new to the Subaru world, i just picked up a 2003 wrx. below is a list of the current mods on it.
grimmspeed uppipe- ceramic coated
Perrin bellmouth down pipe all stainless 3.5 all the way back (no cats)
RCE springs, sti struts
Prosport oil and boost guages
AEM UEGO wideband
3 guage cluster where stock clock was
TIC short shifter/knob
TIC Crossmember bushings
Group N tranny mount
ACT Stage 2 clutch
ACT lightweight Flywheel
Ported block/heads 2.2.
PPG Straight cut hybrid gears
Car was running nice and pulling at 21psi. however last night, i went to run to the gas station and fill it up, it feels as there is no boost building at all, normally you can hear/feel the turbo spooled at 2700 RPM, and feel the kick of power, now it's just sluggish and not spooling... any thoughts?