Manually tune cheap
 

Hey does anyone know any free tuning softwares and cheap wires to plug your car into your laptop? I'm wanting to learn and tune my 370z without spending money on an osiris or ecutek tuning kit (nothing expensive). Or know a way to tune without those expensive kits?

If people did, then I'm positive no one would buy either. If you want to learn how to tune you need Uprev, I don't think you can self tune with ecutek anyway.

Sort of like "jailbreaking" your iPhone???

I see too many things going wrong with what you are trying to do. There is a reason that "trained professionals" tune people's cars. One mistake and your car becomes undrivable and then you'll have to pay someone big $$$ to fix it.

It's great that you want to learn how to do this by "playing" but as they say, "be careful what you wish for..."

I am a very technical, computer oriented and an intelligent person (I think) and this is something that I would NEVER try without being taught by someone who knows what they are doing. It's not like writing a few lines of code to see a traffic light blink through its sequence. This is very dangerous ground that you want to tread.

With all that being said, I have never seen a software package that you are asking about. You can get a cable, but without having the matching software, it's not going to work. If you want a tune, save your pennies and have it done when you are ready. Maybe the tuner will let you watch as they manipulate the tune.