With the tune removed, for some reason the tire height defaults to 38"s. When I go into the axle ratio, it does not show which gear is the default.

My gears are stock at 3.06 but I'm running 22" wheels. I know my speedo was off a little after I put on the 22's (without tune) but now it is grossly off. On the freeway it will read at least 20mph faster than I am actually traveling, in the city it will read about 10mph faster.

When I unmarry the inTune from my car (2012 300 SRT8) the speedo reading is off. The speed will read higher/faster than I am actually travelling. I've tried it twice and both times my speedo was off, there's nothing wrong with it when a tune is installed though.