Why does she try and pull the stunt?
This is probably an elliptic sentence - Why does she try the stunt and why does she pull the stunt (off)? - but it still seems like very bad style to me.
Why does she (even) try to pull the stunt (off)?
I am aware that it is not clear that the attempt was successful, however the to-infinitive comes much more naturally to me, for whatever reason. From context, it is clear that it was successful. So, would you consider it weak style to use an ellipse like this?