Do you have older shifters with a trim position? Then no - you do not new the new FD. Newer (red only?) shifters from SRAM lack trim and you would need that yaw feature.

that maximum performance is just marketing fluff. The new chainrings definitely shift better and the YAW FD is a big improvement over the older Ti caged Red FD.

I actually put the exogram rings on my older red crank (they make a separate large chainring for non-hidden bolt compatibility) and I put a yaw FD on with my old red shifters and it's shifting flawlessly. FLAWLESSLY!. The shifts are fast, clean and relatively noise free. Bliss.