Re: 20+ Horsepower Increase for your Focus. RaceMOD Performance chip only $29.99
"Alan" <email@example.com> wrote
> Could this be a resistor used to modify the sensor output? i.e. a resistor
> probably costing no more than 10 cents.
Quite possibly - at least as the profit margin on these things is concerned.
But in general, any such tweak that provides a useful power boost will
probably increase fuel consumption in normal driving, as well as require the
use of premium fuel.