For those of you that have installed a SpeedCal on your 03/04 cobra, which set of directions did you find to be most accurate? Also, do you have any advice that might be useful for me when I install it? Thanks!
I know, but I bought the car with a dyno tune already on it. The tuners simply never recalibrated the speedo for it. I called their shop numerous times and never got an answer or a call-back...so SpeedCal it is.
Under the console is the convertible top plug. Great place to grab a keyed power source for the speedcal. I don't remember which color wire it is, but pretty easy to figure out with a meter.