Ive noticed my speedo is out at higher speed with comparison to my TomTom GPS speed display.
Im guessing the GPS is more accurate. But gonna get one of these E-MFA addons ordered.
The E-MFA is more accurate than my Becker GPS. I bet it's even more accurate than any commercial GPS.
We compared it several times with a Performance Box and the E-MFA was very close to it. Much more
close than the Becker GPS.
The reason: standard GPS only have 1 Hz, the Performance Box has 10 Hz and the E-MFA detects the
wheel speed.
I don't want to miss the easy to read and correct speed, voltage, oil temp and water temp anymore.
I'm very happy with it. The most satisfying item of my car.