my tuner is set for a 99GT, can you remove the diagnostics from my vehicle and transer the tuner to a 99 cobra, or is that a problem

 

I don't think so, SCT's are for one specific computer type. It will work on another car, but it has to have the same computer code as yours. I'd imagine the cobra would have a different computer than a 99 GT. wouldn't sware to it though

 

the tuner gets locked to your cars vin as soon as you setup a tune, you have to um marry it from the gt before you can use it on the cobra.