I'm new to tuning and have a question about EFI live. I was wondering if I have to buy EFI or can I get a tune from somebody else. I have a few issues with my truck that I would like to fix but I've been out of work for a whole year now and don't have alot of extra money. I think I read somewhere that there might be a demo tune or something like that available . Could someone please shed some light on this . Thanks.