Well Hello all from down under.
I have a MY00 Evo 4 wrx min mods exhaust and pod filter. Just completed a oil filter change took it for a run with a boost gauge as well. funny thing is it was only runing around 12psi...after this i drove to the fuel station filled the car up with 98octane fuel took off and i had no power. put the gauge back on the car and i was only pulling 8 pound??? i have checked all the vaccume lines all is well. what could it be? but there is more hence intermitent, it then comes back on to 12 psi then dropps back to 8? help me.....