The car is completely stock except for the big Borla mufflers. I've been thinking that the car may have lost some torque in higher gears/lower RPMS due to the mufflers, but it seems like it just upshifts too much. 6th gear at 40 mph?
I know Ford programmed the automatic tranny to upshift as much as possible for fuel economy, but is there any way to tune the car in order to prevent the tranny from upshifting into high gears at low speeds/light throttle? I would prefer it to shift automatically for daily street use rather than...