guys with predators............

I have a 2003 GT. I just bought a predator. My car has a dallas mustang speed -cal and mil eliminators. I turned off the 02 sensors anyway and selected 4.09 gear ratio (I assume that is the same as 4.10) . Will my speedometer take readings now from my speed-cal or from the predator settings?

I left the speed-cal on just to be safe in the case that I have to take it into shop for warranty work. If I installed the factory tune back into the car the speed-cal would still be connected and be working. The same goes with the mils. Is this ok to do?????????????

zkiller18 said:

leave the factory gear setting so the predator wont change anything. if you already have the speedcal there is no reason to change it using the predator. i turned my o2 sensors off but if i need warranty work im just gonna put my stock h-pipe in and take the predator tune out.

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If I want to remove speed-cal do I just unplug it? I did not do the install, but I know where it is because I installed my 5.0 shifter. Would I have to do any splicing of any wires ??