What do you mean? The question is kind of open to a lot of interpretation.
What's the best 4.3 hack?
I agree! Do you mean softmod hack?
Yes a softmod. Is there one without a game?
Go look in the guides and see if there is. It isn't possible yet, but things can always change.
This is a strange one because I hacked my 4.3 WITHOUT a game but I'm not sure how!!
I think it was because I managed to install HBC while on 4.1, then stupidly updated to 4.3 but I still had the HBC fully working. then I just followed the guide in my signature.
Worked a treat for me but in all honesty, I think you will probably need one of the games listed in the tutorial. I was just lucky I think when I hacked mine.
Besides, it only costs a couple of quid or dollars (for our trans atlantic friends) to hire or rent the game out. perform the exploit then take it back!!!