Accessport Subaru

Can you solve the Accessport Cobb of 08 Impreza 2.5i for mileage too?

My father gave me the Subaru of highschool. He leads in winter for its IT compared to the FWD Acura. I want to make mods to it but my father says it's just a waste of money and decreases mileage. He said that if I do these mods engine (HKS turbo, intercooler Perrin, Perrin catback exhaust tailpipes Perrin, KN cold air intake, Perrin BOV, etc.), he should get the same mileage in the city: Hwy 20: 27 It says that if it is reduced by 1 or 2, it goes well. I can look for mileage? If not how else can I get mileage with these mods? Thank you!

Gas consumption in a WRX is more dependent on how you drive, what modifications you have. Considering that you change your car for power, you've probably 20mpg or less) Your Dad, however, is mainly related to gas mileage, so my suggestion would be that he does not even going to boost that much of Hence these mods will have virtually no effect on fuel consumption while he was driving. On a side - make sure you get a correct focus! You may seriously damage your engine with a turbo and intake if it is not set correctly. In a other side - to get the vehicle was a waste of money if he is more concerned about gas mileage and performance.