So my buddy picked up a wrx and wants to bump up the boost, i did a google search trying to find out about subby fuel mange and good ---- and stumbler across

this

"The factory ECU tends to make the engine run rich above 4000 rpm. Running too much fuel, especially with increased boost, decreases combustion (not enough air to combust all the fuel) and hence…less power."


Last time I checked more air = NEED more fuel?

and this is supposed to be a top notch subby site?

scoobytuner.com