what's the difference between the two? RT is like $30 more, is it worth it? all i will do is increase and decrease my low/high speed cooling fans, shifting points, and all little stuff like that. i'm not planning to put a cam in my car. also, do i need a good labtop? i got a crappy one. please give me insights at this. thanks a lot

 

i think the RT is real time, i really don't think the rt is for obd1 computers yet

 

i see, which one is the best one for 94 Z28, obd1? tuner?

 

Well, considering the RT version won't work on your car...