I just bought a 2003 wrx today, I've already fallen in love with it. I should have asked the guy more questions, and or have not bought it. Its got and aftermarket blow off valve cobb turbo back, and running on 16psi. It has absolutely terrible gas mileage. I was wondering if it was a normal thing but at this rate I can't afford fuel. It has a cobb access port and I have many questions. Is there a map tune I can upload to the car to bring it back to stock or because it has the turbo back do I have to leave the tune. If anyone can direct me to a good map tune to upload to the car to save gas mileage but not ruin the power it has. Idc if I have to run less boost. This is my first Subaru, I know a lot about them mechanically, but I am a little lost when it comes to the tuning aspect.