Originally Posted by DoomsdayFAN
What kind of gas mileage does a heavily built or fully built STi get, ballpark? Is there an "economy" tune to switch over to when wanting to save on gas and keep her running a little slower?
I am not quite 400HP (390HP on Cobbs Mustang Dyno) but close enough lol
I get 14/21 and that is with 272 cams, GTX30, 91oct, full catless exh, open loop idle, P&P, ID1000's, etc.
BTW - how can I load the specs of my motor, etc into my profile so I dont have to type them out all the time
**Should note that the 14/21 was achieved on my 'econ mode' which is 310/278 for power numbers, I dont have gas mileage numbers on the higher power modes yet.