What if I install and tune my car with PowerCard and then go up to a higher altitude?
Our product attaches directly to the trigger wires of the fuel injector and only modifies the length or duration of the fuel signal. That way, all of the factory-specified and required settings for altitude, barometric pressure, and temperature adjustment are totally unaffected and continue to function as originally designed. For boosted applications, PowerCard measures relative pressure, resampling atmospheric (zero boost) pressure at each startup.
