Im wondering what problems I might be having if I dont get my Speedo/shifts corrected once I change my gears? I know that it will be racking up extra mileage, but, being that i have an auto, would my car be pegging the limiter everytime I floor it? Would it be ok if I dont get it reprogrammed for a while? I already know that I need a chip or a programmer but I wont be able to buy it when I install the gears. So any help? 

