The most accurate OEM dash gauge is the speedometer.
They don't want their speedo's to a reason for the LEO's to pull you over
More than TPS & ABS computer needing to know, but the torque management for
the whole setup and the +5 speed automatic. Toss in traction control and
anti-sway if you have it. Maybe more computers are involved.
Anyone know if the tuners also change those functions, other than just
the speedo?
PS...the computers count "rev's per mile" to calculate everything and
the tire's OD is just what we are told
