Getting better but your pads are mis-matched, you need the Front set for the 320mm front rotor, the ones you listed are for the big Akebonos (355mm)
I missed that the first time around.

 

Gee, it's truely a maze for people like me to navigate through this long and crowded list. Really appreciate your help!
I guess this one is correct? "CENTRIC 10508880 Posi-Quiet Ceramic w/Shims and Hardware-Preferred"

 

I hear ya, that rockauto site is like navigating through a minefield, looks like you have a winner now

 

Thanks! Ordered rotors and pads for both front and rear. Now, need to find a shop at Pittsburgh to install them...

 

Now I'm wondering the one you've listed if that works for infiniti g37x 2012.

 

X sedan yes, x coupe no.